Thetford Hold Down Kit 92921111 for Porta Potti 135 and 335

The Thetford Hold Down Kit 92921111 secures a Porta Potti 135 or 335 portable toilet in place during use and transport, preventing the unit from shifting on a boat, RV, or camper floor. This kit is the current version of the hold down hardware, superseding the earlier Thetford part numbers 35800 and 92921 -- if you have one of those older part numbers listed for your toilet, this kit is the correct replacement.

Hold down kits like this one mount to the floor and anchor the base of the Porta Potti so the toilet stays stable while underway or in transit, an important detail for boat owners who need the toilet secured against rocking and movement. Installation is straightforward floor mounting, matching the original equipment design of the Porta Potti 135 and 335 units.

Specifications

• Brand: Thetford
• Manufacturer Part Number: 92921111
• Product Type: Toilet Hold Down Kit
• Compatible Models: Porta Potti 135, Porta Potti 335
• Installation Type: Floor Mounted
• Weight: 0.4 pounds
• Supersedes: 35800, 92921

Fitment

• Thetford Porta Potti 135
• Thetford Porta Potti 335

Replaces (OEM)

• 35800
• 92921

Frequently Asked Questions

What does the Thetford 92921111 hold down kit do? It secures a Thetford Porta Potti 135 or 335 to the floor so the toilet does not shift or rock during use or while underway.

Will this kit fit a Porta Potti 135? Yes, the 92921111 hold down kit is designed for both the Porta Potti 135 and the Porta Potti 335.

Is 92921111 the same as the old part number 35800? Part number 92921111 supersedes the earlier Thetford part number 35800, so it is the current replacement for that kit.

Does 92921111 also replace part number 92921? Yes, Thetford part 92921111 supersedes both 35800 and 92921, so either older number can be crossed to this kit.

How much does the hold down kit weigh? The Thetford Hold Down Kit 92921111 weighs 0.4 pounds.

How is the hold down kit installed? The kit is a floor mounted design that anchors the base of the Porta Potti 135 or 335 to the floor of the boat or RV.

Is this a genuine Thetford part? Yes, part number 92921111 is a genuine Thetford hold down kit, not a generic aftermarket substitute.

What is included with the 92921111 kit? The kit includes the hold down hardware needed to floor-mount a Porta Potti 135 or 335.

Can I use this hold down kit for a different toilet model? The 92921111 kit is specified for the Porta Potti 135 and 335; compatibility with other Thetford models is not confirmed.

Why would I need to replace my hold down kit? Over time the original mounting hardware can wear or crack, and replacing it with the current 92921111 kit keeps the Porta Potti 135 or 335 securely anchored.