🚽 Elevate your RV setup with the ultimate no-fuss holding tank!
The Icon 437 Bottom Drain Holding Tank is a compact, 8-gallon HDPE tank featuring built-in reinforcements for direct toilet mounting. It includes all necessary fittings—3" threaded, 2" slip, and flange—eliminating the need for additional parts. Designed with a bottom drain for efficient waste disposal, its space-saving dimensions make it perfect for travel trailers and bus conversions.
| ASIN | B0058SQFRG |
| Best Sellers Rank | #1,009,840 in Automotive ( See Top 100 in Automotive ) #96 in RV Black Water Tanks |
| Brand | ICON |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (132) |
| Date First Available | June 30, 2011 |
| Drain Type | Bottom Drain |
| Finish Type | Unpolished |
| Global Trade Identification Number | 00628423004377 |
| Installation Type | built-in |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | 437 |
| Manufacturer | Icon Technologies Limited RV |
| Manufacturer Part Number | 437 |
| Material | High Density Polyethylene (HDPE) |
| Model | 00437 |
| Product Care Instructions | Wipe with Dry Cloth |
| Product Dimensions | 23.5"D x 18.8"W x 7.1"H |
| Shape | Rectangular |
| Size | 1 x 152 cm |
| Style | Modern |
| UPC | 628423004377 |
J**O
Great product
Exactly what I needed for my travel trailer, since there isn't space under it.
L**.
Quality is evident
I really like that I don't have to install this under my bus conversion. It just fits right under the toilet. I thought I read that some people said that the outlet opening is 1.5 inches. Mine is definitely 3 inches. Haven't put it in yet but it just looks to be a quality product.
P**S
High quality, Just brace it with a 6" board around the lip
Great product and very easy to install
B**N
Perfect for skoolie
Perfect for skoolie. I raised the floor six inches then dripped this in. I cut one hole through the floor of the bus for drainage and one through the ceiling for venting. Things to note: The vent hole sits way to close to the flange. If you have a hand flush on the same side as the vent hole, it will likely block the flush handle. This happened to me, so i 90° directly out of the vent hole to the back corner of the bathroom and then I 90° up through the ceiling.
K**A
New Black Tank
Purchased this to replace the recirculating toilet in my Trailmanor. Easy to install and only needed to move the existing drain pipe about 1.5 inches. Able to mount a low profile directly on top. Added trim around the tank and now I have a much better toilet in my camper.
A**R
Very cool trailer upgrade.
I picked this up for a "poor man's Sealand" toilet mod on our RV. It was perfect for the job. This one has a toilet flange and a vent fitting on the top and a standard black tank drain fitting on the bottom. It has a textured top, internal bracing, and thick walls. There is no flex at all. It comes in black, but painting it white made it look much better. It's one of our best mods and was fairly simple.
K**.
Works great
I put this in a weekender horse trailer. It’s easy to install and is made of quality products.
L**S
it does work but its not great
Was a great idea however the toilet is tightened to tank but it is honestly wobbly
W**T
Ordered to replace broken tank in a 1970 something slide in truck camper. It is identical except it is better built.
G**H
I bought this not understanding how small it is . So I have never used it it still in the box . Iff someone wants to buy it I ça give a discount . I have five or more stay in my place so this is definitely two small
Trustpilot
1 day ago
2 weeks ago
