Model |
Port Size(Feedwater/Drain water/Pure water) |
Material |
1812 |
1/4" |
/4" |
1/4" |
Food graded polypropylene |
3012 |
3/8" |
/4" |
/4" |
3013 |
3/8" |
3/8" |
/4" |
3213 |
3/8" |
3/8" |
3/8" |
10"BIG |
|
1"1.5" |
|
20"BIG |
|
1"1.5" |
|
20"NORMAL |
|
1/2"3/8"1" |
|
|
Standard Size
Discover the versatile Membrane Solutions 1812/3012/3013/3213 Reverse Osmosis Housing. This universally sized marvel is exceptionally compatible with an array of standard-sized residential RO membranes, effortlessly accommodating diverse capacities such as 100 GPD, 200 GPD, 300 GPD, 400 GPD, 500 GPD, and even 800 GPD.
Durable Construction
Engineered from robust FRP (Fiber Reinforced Polypropylene), this membrane housing stands as a paragon of strength with its thicker build, amplifying pressure resistance and anti-explosion performance. Its superior heat insulation makes it an ideal choice for environments exposed to acids, alcohol, ammonia, oils, plating solutions, and various corrosive chemicals.
Efficient Leakage Protection
Expertly crafted with a robust unibody and fortified by dual o-ring sealing, this housing guarantees impeccable leakage protection. It's dedicated to ensuring drinking water safety, boasting remarkable compression resistance and explosion-proof strength.
Wide Application
Effortlessly integrate our reverse osmosis filtration set into your home or office RO water system to relish pure, refreshing water. Perfect for any DIY water filtration endeavor, it also serves as an excellent choice for crafting concentrated maple sap.
Package Includes
1 x Housing,
3 x Elbow Fittings
1 x Wrench
How to Change RO Housing and Membrane?
1. Commence the process by turning off the feed water supply line valve to the RO system along with the water tank valve.
2. Open the RO faucet to allow the system's pressure to dissipate completely.
3. Carefully remove the blue safety clip, press down on the collect, and detach the tubing from the membrane housing.
4. Employ the provided wrench to unscrew the membrane housing cap efficiently.
5. Utilize pliers to gently extract the used membrane, dispose of it, and insert the new membrane. Ensure the end with two small washers is inserted first and push until it snugly fits into place within the membrane housing.
6. Secure and tighten the membrane housing cap, reconnect the detached tubing, and securely reattach the blue safety clip.
Note: Should the housing cap resist fitting back easily, gently twist the RO membrane to ensure its proper alignment with the pure water outlet.





Sandmonk Technology Co., Ltd. (SAND.K) stands at the forefront of water environmental technology, driven by an unwavering commitment to innovation. By harnessing a sophisticated international supply chain, we bring dynamic transformation to the industry, fueled by profound expertise. We deliver comprehensive, all-in-one services for vital components. Our superior craftsmanship is specifically designed for small to medium-sized equipment manufacturers, utilizing cross-border e-commerce to serve global markets, particularly in developing regions.
Our unmatched R&D capabilities and robust manufacturing processes position us as industry leaders, perpetually advancing the boundaries of water technology innovation. Through meticulous data analysis, we tailor custom solutions for areas grappling with high salinity water issues, adapting our offerings to fit unique local needs.
Our solutions encompass a wide spectrum, including seawater desalination, waste leachate treatment, drinking water purification, and the reuse of treated wastewater—delivering a holistic solution to water challenges. Moreover, our competitive cost advantage distinguishes us in the industry, delivering exceptional value and exceptional quality.

QUESTION |
ANSWER |
Are you a factory or trading company? |
Yes, we have our own factory. |
Can you offer OEM service? |
Yes, OEM is OK. |
Can I get samples from you factory? |
Sure. We are pleased to. |
What would you do if some quality problem occur? |
We will be responsible to all quality problem. |