🚽 437 Bottom Drain Holding Tank: 22-1/2" x 18-1/2" x 6" - Enhanced for SEO Review

This holding tank is 2" wider than the shower tray it is sold with. You can see the black stock tank under the white shower pan and see how it has grown 2 inches. How do you build around it? Called Revain and they don't have a phone number for this company.

Purchased to replace the circulation toilet in my Trailmanor. Easy to install, you just need to move the existing drain pipe about 1.5 inches. Possibility to mount a low profile directly from above. Added trim around the tank and now I have a much better toilet in my RV.

I love that I don't have to install this under my converted bus. It fits right under the toilet. I thought I read that some people said the outlet was 1.5 inches. I definitely have 3 inches. Haven't used it yet but looks like a quality product.

I chose this for the Poor Man's Sealand toilet mod on our van. It was perfect for the job. This has a toilet flange and vent at the top and a standard black tank drain fitting at the bottom. It has a structured upper, internal stays and thick walls. There is no flex at all. It comes in black, but when painted white it looks a lot better. This is one of our top mods and was pretty easy to make.

Ideal for school children. I lifted the bottom six inches and then dripped in. I made a hole in the floor of the bus for drainage and one in the ceiling for ventilation. What to look for: The vent is near the flange. If you have a hand flush on the same side as the vent, it will most likely block the flush handle. This happened to me, so I went 90 degrees straight out of the vent to the far corner of the bathroom and then 90 degrees up through the ceiling.