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Max WaterStainless Steel Reverse Osmosis Commercial Membrane Housing 4021

Q: Can i use this membrane on a ro system. for by window washing and what is the difference between a 4x21 and a 4x40 membrane?

The 4 x21 is around 21 inches long, the 4 x 40 is around 40 inches long. This is just the housing, you have to buy a 4 x21 inch RO membrane to go inside the stainless housing and you'll need at least 70 PSI on the feed water to get any decent flow rate from the membrane as anything below 40 PSI won't produce much water. The flow rate through the membrane is going to be pretty low even at optimum PSI of 90-100. It will output around a liter a minute in production water along with waste water.

Q: Hi there! i have an aquabase watermaker unit and it requires a 711205 membrane 4"-21 sw & want to make sure this it the correct part that i need?

No this is not a compatible membrane, our membrane is not made to be used with seawater SW

Q: Is there away to directly connect male and female 3/4" garden hose maybe by quick push connect? What is the od size of theof both end nipples on membr

This is membrane only and no housing included. Search for the housing 4021 and all the details is listed. Hosting includes 1/2" and 3/4" NPT female ports on each side. No 3/4 Gardon threads and you should buy adaptor 3/4" NPT x 3/4" Gardon, you can find it on Amazon.

3.7/5

Product ID: 621482957

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Details

Material
Stainless
Product Dimensions
4"D x 4"W x
Product Benefits
(function(f) {
Brand
Max Water
UPC
680392201706

Frequently Bought Together

Max Water 4021 - Heavy Duty, Stainless Steel - Reverse Osmosis Commercial Membrane Housing 4" x 21"

Max Water 4" x 21" BW-4021 RO Membrane, Brackish Water RO 1000 GPD for Commercial, Agricultural, Whole House Reverse Osmosis.

Description

Max WaterStainless Steel Reverse Osmosis Commercial Membrane Housing 4021

Specifications

Item Dimensions D x W x H	4"D x 4"W x 21"H
External Testing Certification	ANSI
Material Type	Stainless Steel

Have a Question? See What Others Asked

How many GPM does this output?

Can i use this membrane on a ro system. for by window washing and what is the difference between a 4x21 and a 4x40 membrane?

Hi there! i have an aquabase watermaker unit and it requires a 711205 membrane 4"-21 sw & want to make sure this it the correct part that i need?

Is there away to directly connect male and female 3/4" garden hose maybe by quick push connect? What is the od size of theof both end nipples on membr

Common Questions

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€ 323.16

Duties & taxes incl.

Slovakiastore

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30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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