Max Water - Heavy Duty - Reverse Osmosis 4040 Membrane Housing - 4" x 40" good for industrial use - 4040 housing

Pretty impressed with the quality for the price, came with mounting straps also, works great, no complaints.

Just purchased this RO casing for my RO/DI window cleaning system. My last casing was made from ABS plastic purchased from ABC window cleaning. That system took a tumble and the plastic shattered. I knew the RO membrane was still good, so I took a chance on this casing. Very glad I did, this thing is solid and I have no doubts that if falls over, it will survive. My one complaint is they do not include the necessary plugs for a waterfed setup. Not a big deal to me as I had some on hand, still give it 5 stars

A lot more RO Water, and less water sent down the drain. Replace the 21 inch.

I use reverse osmosis in a 4 stage water system used to clean windows. The one I had previously finally started leaking through the tube after 10 years of service. This one was a perfect replacement at a fraction of the cost. I had no problems sealing the fittings with a wrap or two of blue teflon tape. I knocked off a start because the plastic end caps seem really brittle compared to my 10 year old caps so I am not sure how they will hold up.

excelente a buen precio

I have two of these. The steel housing itself is totally fine, but the ports on the endcaps are obviously oversized and are all somewhere between difficult and impossible to get sealed. I've tried various fittings and they all screw all of the way in with very little torque. The seller's advice was literally to just keep adding tape until it will actually tighten up, which is more than a little absurd. I ended up doing 6 wraps of blue monster (2-3x the normal number) and I still have seepage. Even if it actually worked, I'd consider it to be a bandaid at best. NPT fittings require strong thread engagement, and you're just not going to get that with extra layers of tape. Either the seller doesn't know, or just doesn't care enough to make their product right, and they seem to have zero interest in resolving this issue. You'll be better off spending a few more dollars and avoiding this altogether.

Excelente producto una maravilla en la filtración de agua

I’m not going to ding the design based off of how we use these. However it doesn’t make a whole lot of sense to me that they use 3/4” thread patterns when the output side can really only produce about 3 gallons of product per minute. They used to have 1/2” thread patterns while was a lot more universal. Oh well. It still works the way it should.

perfect

Trying to build a home made reverse osmosis for maple syrup production, I bought a total of 3 such tubes. Installed membranes and operated well to about 100psi. At 125, concentrate would poor in clear water outlet. I thought I had a membrane failure and got zero support from vendor. In the end, I discovered that, although very tight at insertion, the O-rings manage to roll out as pressure increases causing complete loss of pressure. Also found that plastic caps crack when screwing NPT fittings. In turn, all caps suffered the O-ring issue and 3 out of 6 caps cracked. I converted those tubes to expensive membrane storage cases. This product is not meant to be used with water pressure and RO is all about pressure. Not recommended.