Whether you’re a municipal engineer balancing a tight utility budget or an industrial plant manager facing strict 2026 discharge standards, the "sticker price" of filtration is only half the story.
This guide breaks down the 2026 Dynasand filter price list, moving past the initial investment to reveal how continuous filtration technology stacks up against conventional systems in total lifecycle value. If you're looking to optimize flow without the downtime of traditional backwashing, you're in the right place.
| Filter Type / Category | Specification / Scenario | Estimated Price Range (USD) |
| Small-scale single-cell unit | 5–20 m³/h, carbon steel, standard | $3,000 – $8,000 |
| Standard single-cell unit | 20–60 m³/h, carbon steel, epoxy-coated | $8,000 – $20,000 |
| Medium multi-cell system | 60–150 m³/h, standard configuration | $20,000 – $50,000 |
| Large multi-cell system | 150–500 m³/h, municipal-grade | $50,000 – $150,000 |
| High-capacity custom system | 500+ m³/h, project-engineered | $150,000+ (quoted) |
| Stainless steel 304 unit | Food-grade / reclaimed water applications | +30–50% vs. carbon steel |
| Stainless steel 316L unit | Seawater / high-chloride environments | +50–80% vs. carbon steel |
| GRP / FRP composite unit | Corrosive industrial wastewater | +40–70% vs. carbon steel |
| Municipal drinking water system | 60–500 m³/h, full treatment duty | $20,000 – $150,000 |
| Wastewater tertiary treatment unit | 30–300 m³/h, SS/TP polishing | $15,000 – $120,000 |
| Industrial process water filter | 10–100 m³/h, inline filtration | $8,000 – $60,000 |
| Stormwater / runoff treatment unit | 20–150 m³/h, intermittent duty | $12,000 – $55,000 |
| Reclaimed water / reuse system | 30–200 m³/h, reuse-grade output | $18,000 – $80,000 |
| Seawater pre-treatment (RO feed) | 50–300 m³/h, pre-RO SDI control | $25,000 – $100,000 |
| Power plant cooling water filter | 100–500 m³/h, high-continuity duty | $40,000 – $150,000 |
| Skid-mounted package system | Filter + piping + controls, ready to install | $15,000 – $120,000 |
| Containerized mobile unit | Self-contained, deployable configuration | $30,000 – $150,000 |
| Turnkey filtration system | Full engineering, supply & commissioning | $80,000 – $500,000+ |
The upflow continuous sand filter is the most widely deployed Dynasand configuration. Raw water enters from the bottom, flows upward through a moving bed of filter sand, and exits as clarified effluent at the top — while contaminated sand is continuously withdrawn, cleaned by an internal airlift-driven sand washer, and returned to the top of the bed. Because no shutdown for backwashing is required, this design is highly favored in municipal water supply and wastewater polishing applications.
Typical price range: $8,000 – $150,000, depending on flow capacity and material specification.
The denitrification variant uses a deeper sand bed and is designed to support biological denitrification alongside physical filtration. A carbon source (typically methanol or sodium acetate) is dosed upstream to fuel denitrification bacteria within the filter bed. This type is common in municipal wastewater treatment plants required to meet strict total nitrogen (TN) discharge standards.
The additional engineering complexity — deeper vessel, chemical dosing integration, and biofilm management — pushes prices higher than standard units.
Typical price range: $20,000 – $180,000, depending on bed depth, vessel height, and ancillary dosing system scope.
Where simultaneous suspended solids (SS) removal and chemical phosphorus precipitation are required, a coagulant dosing point is integrated upstream of the Dynasand unit. The filter captures both particulate phosphorus and the floc generated by chemical precipitation. This configuration is widely used in tertiary wastewater treatment to achieve total phosphorus (TP) below 0.5 mg/L.
Typical price range: $15,000 – $130,000, with dosing system and chemical feed equipment adding $5,000 – $20,000 on top of the base filter cost.
For high-flow applications — large municipal water plants, regional wastewater treatment facilities, or industrial parks — multiple Dynasand cells are arranged in parallel within a common manifold system. Multi-cell systems allow modular capacity expansion, redundancy during maintenance, and more consistent hydraulic loading across the filter bed.
Pricing for multi-cell systems is not simply a linear multiple of single-cell costs. Shared inlet/outlet manifolds, common control panels, and integrated sand washing systems introduce economies of scale that reduce per-m³/h cost as system capacity increases.
Typical price range: $50,000 – $500,000+, depending on the number of cells, total flow capacity, and level of automation.
Containerized Dynasand units integrate the filter vessel, piping, pumps, blowers, and control panel within a standard 20ft or 40ft shipping container frame. They are designed for rapid deployment, remote site operation, temporary water supply projects, and emergency treatment scenarios. The plug-and-play nature of these units commands a price premium over equivalent open-frame installations.
Typical price range: $30,000 – $150,000, depending on treatment capacity and included auxiliary equipment.
A turnkey scope covers everything from process design and equipment supply through to on-site installation, commissioning, and operator training. For buyers who lack in-house engineering resources — or who are procuring filtration as part of a larger water treatment plant — turnkey delivery eliminates the risk of design-supply-installation interface gaps.
Weilan offers full turnkey Dynasand filtration systems backed by 15+ years of engineering experience and 200+ completed projects, providing clients with a single-source accountability model from concept through commissioning.
Typical price range: $80,000 – $500,000+, project-specific and quoted on a case-by-case basis.
Flow capacity is the single most influential pricing variable. A larger design flow requires a larger vessel diameter, more filter sand volume, a higher-capacity airlift pump, and a larger sand washer — all of which scale material and fabrication costs directly. As a general rule, doubling the flow capacity increases unit cost by 60–90%. For multi-cell systems, cost-per-m³/h typically decreases as total capacity grows, making large municipal systems proportionally more cost-efficient than small standalone units.
Material selection has a substantial impact on upfront cost. Carbon steel (epoxy or FBE-lined) is the standard option for most municipal freshwater applications. Stainless steel 304/316L is required for reclaimed water, seawater pre-treatment, or aggressive water chemistry environments, adding 30–80% to base vessel cost. GRP/FRP composite is used in highly corrosive industrial applications and is competitive with stainless steel for larger diameters. Material selection should always be driven by water chemistry analysis — over-specifying is a common source of unnecessary cost inflation.
A basic Dynasand filter can operate with minimal instrumentation, as the continuous sand washing mechanism is largely self-regulating. However, adding PLC-based control panels, HMI touchscreens, flow meters, turbidity sensors, and SCADA integration can add $15,000 – $40,000 to the base unit cost. For unmanned or remotely operated facilities this investment is typically justified by reduced operator labor costs, but for simple installations it represents avoidable expenditure.
Manufacturing origin and supply channel directly affect price. Direct procurement from a Chinese manufacturer like Weilan delivers the most competitive FOB pricing — typically 30–50% below equivalent European-branded equipment. Regional distributors add 20–40% margin, while EPC contractors typically mark up filter costs by 15–30% within bundled project pricing. Landed cost at your project site will add freight, import duties, and inland logistics on top of the FOB baseline, typically 8–30% depending on destination.
Conventional gravity sand filters are the most widely used alternative to Dynasand in municipal water treatment. They are simpler in construction and typically lower in upfront capital cost for small installations, generally running 15–25% cheaper than an equivalent Dynasand unit at small scale. However, that initial saving is offset by the operational costs of periodic backwashing — downtime, backwash water consumption of 3–5% of total throughput, and the infrastructure required to handle and recover backwash waste. At medium and large scale, the capital cost gap between the two technologies narrows considerably. When total cost of ownership over a 10–15 year asset life is calculated, Dynasand consistently delivers better value for continuous-duty, space-constrained applications.
Disc filters use stacked polymer discs as the filtration medium and are valued for their compact footprint and low capital cost at small flow rates, making them a popular choice for irrigation, cooling tower makeup, and simple SS removal duties. For these light-duty applications, a disc filter will typically undercut Dynasand on upfront price by 30–50% at small scale. However, disc filters are surface filtration devices with limited solids loading tolerance and no capability for biological treatment. For any application involving significant suspended solids concentrations, high-continuity operation, or biological filtration requirements such as denitrification, Dynasand is the more capable and cost-effective long-term solution.
Ultrafiltration membranes represent the premium end of the filtration technology spectrum, delivering superior effluent quality including partial pathogen removal and turbidity consistently below 0.1 NTU. For applications requiring this level of treatment — particularly drinking water production and RO pre-treatment — UF membranes are often specified. However, they carry substantially higher capital costs, typically 2–4 times the price of an equivalent Dynasand system at medium scale, along with significant ongoing membrane replacement expense. In many projects, the most cost-effective configuration is a Dynasand filter positioned upstream of a UF or RO system, protecting the membrane from high solids loading, extending membrane life, and keeping total system cost in check.
One of the most compelling operational advantages of Dynasand technology is its low energy footprint. The continuous sand washing mechanism is driven by a low-power airlift pump operating at steady state, with typical energy consumption running between 0.01 and 0.04 kWh per m³ of treated water — significantly lower than membrane-based alternatives at 0.1–0.3 kWh/m³. Over a 15-year operating life, this difference can represent tens of thousands of dollars in cumulative energy savings for medium to large installations.
Dynasand filters use silica quartz sand as the filtration medium — durable, widely available, and low cost. Under normal operating conditions, a well-maintained unit can run 5–10 years before a full media replacement is needed, at a cost of just $2,000 – $10,000 depending on vessel size. Routine annual maintenance is similarly modest at $1,000 – $5,000, given that the only moving components are the airlift pump and sand washing assembly.
A well-specified Dynasand filter has a design service life of 20–30 years for the vessel and structural components. When total lifecycle cost is annualized across this service period, Dynasand is highly competitive even where upfront capital cost is higher than simpler alternatives. Buyers who evaluate filtration technology purely on purchase price routinely underestimate the long-term value differential that continuous sand filtration delivers.
Dynasand filter pricing in 2026 spans from $3,000 for a small single-cell unit to $500,000+ for a large turnkey municipal system. For most standard applications, buyers should budget $8,000 – $150,000 for the filter unit, with total installed cost running 15–50% higher depending on site conditions and auxiliary equipment scope. When evaluated on a total cost of ownership basis — factoring in energy consumption, minimal maintenance requirements, and a 20–30 year asset lifespan — Dynasand consistently delivers strong long-term value against competing filtration technologies.
Weilan has been manufacturing Dynasand filtration systems since 2011, backed by 200+ completed projects and full engineering support from design through commissioning. Contact Weilan to discuss your project requirements and request a quotation.
A Dynasand filter typically costs between $3,000 and $500,000 depending on flow capacity, material specification, and system configuration. Small single-cell units for industrial applications start from around $3,000–$8,000, while large municipal multi-cell systems can exceed $150,000. Contact Weilan for a project-specific quotation.
The key difference is operational continuity. A conventional sand filter requires periodic shutdown for backwashing, consuming 3–5% of total throughput as backwash water. A Dynasand filter operates continuously — sand is cleaned internally by an airlift-driven washer and returned to the filter bed without interrupting filtration. This makes Dynasand more suitable for high-continuity, space-constrained, and water-scarce applications.
A well-specified and properly maintained Dynasand filter has a design service life of 20–30 years for the pressure vessel and structural components. Filter sand media typically requires replacement every 5–10 years under normal operating conditions.
The four most impactful pricing factors are flow capacity (m³/h), construction material (carbon steel vs. stainless steel), automation and control system scope, and supplier type. Flow capacity is the single largest cost driver — larger units require bigger vessels, more sand volume, and higher-capacity airlift systems.
Yes. Dynasand filters are widely used in municipal wastewater tertiary treatment for suspended solids and phosphorus removal. Denitrification variants with deeper sand beds are also used for biological nitrogen removal. These configurations are standard offerings in Weilan's product range.
To receive an accurate quotation, prepare the following information before contacting your supplier: design flow rate (m³/h), inlet water quality parameters (turbidity, SS, TN, TP as applicable), effluent quality targets, site location and delivery terms, material preferences, and required delivery timeline. Weilan's engineering team will review your specifications and provide a detailed technical and commercial proposal.
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