is it membrane only or entire assembly including house, spacer and seal?

Just the membrane. The housing is separate.

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🌀 Elevate your water purification game with Dow Filmtec’s powerhouse membrane!

ROBUST PRESSURE HANDLING - Designed to endure up to 15 psig pressure drop without performance loss
CHLORINE SENSITIVITY CONTROL - Free chlorine resistance below 0.1 ppm ensures membrane integrity
UNMATCHED CLEANING FLEXIBILITY - Operates across extreme pH levels (1-13) for thorough membrane maintenance
BUILT FOR MULTI ELEMENT SYSTEMS - Hard-shell exterior ideal for complex setups with 3+ membranes
INDUSTRY LEADING FOULING DEFENSE - Thick 34 mil feed spacer minimizes downtime and boosts longevity

The Dow Filmtec BW30-4040 is a high-performance reverse osmosis membrane engineered for brackish water treatment in light industrial settings. Featuring the industry’s thickest 34 mil feed spacer, it significantly reduces fouling, extends membrane life, and supports rigorous cleaning with a wide pH tolerance from 1 to 13. Its robust design withstands pressure drops up to 15 psig and maintains integrity with free chlorine levels below 0.1 ppm, making it the go-to choice for multi-element membrane systems.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Brand	DOW FILMTEC
Model Number	FILMTEC-BW30-4040
Product Dimensions	101.6 x 10.16 x 10.16 cm; 3.18 kg
Color	yellow
Material	Plastic
Are Batteries Included	No
Item Weight	3.18 Kilograms

Dow Filmtec BW30-4040 Reverse Osmosis Membrane for Brackish Water Industry

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