Thetford 42135

Base, White (Low) [Water Saver

Thetford 42135 is the base, white (low) [water saver for the Aqua-Magic Residence and Aqua-Magic Style II. The moulded base the toilet sits on. Thetford lists it for Aqua-Magic Residence and Aqua-Magic Style II.

Which models this fits

  • Aqua-Magic Residence

    Verified against Thetford Parts List, Aqua-Magic Residence (Rev. D).

  • Aqua-Magic Style II

    Verified against Thetford Parts List, Aqua-Magic Style II.

How to tell which one you have

Check the model on the data plate reads Aqua-Magic Residence or Aqua-Magic Style II. This is the white version; the colour is part of the number, not a finish option. This is the low profile version.

Is this part still current?

Yes. Thetford still lists 42135 on its current parts list.

Check this before you order

  • Confirm your toilet is a Aqua-Magic Residence or a Aqua-Magic Style II.
  • Check you need white — the other colours are different part numbers.
  • Ignore listing titles that claim one part covers several models unless the manufacturer's parts lists agree.

Current marketplace inventory

Listings from eBay

We verified the part above from manufacturer documents. The listings below are current eBay inventory, and eBay sellers set their own titles, prices and shipping.

Checking current eBay inventory…

Camper Replacement Parts is not the seller. Price, shipping, stock and item condition are set by the eBay seller and can change at any time. We may earn a commission if you buy through these links.

Where our information comes from

We work from the manufacturer’s own documents. We have not installed this part and we do not test parts in a shop.

Last checked 2026-08-29.