Animals & Pet Supplies · Petersen Valve and Float
Petersen Valve Plunger Seat 100-0840
Petersen · sold by PeteCo Supply, LLC. · $1.00 · in stock

The seat the plunger closes against inside the 3/4 inch plastic valve on Petersen Super PETE waterers. This is the part that actually stops the water, and it is the first thing to wear in a trough that cycles hard all day. Petersen part number 100-0840. A worn seat is the usual answer when a valve will not shut off cleanly and the trough keeps overfilling. Replace the plunger at the same time and the valve seals like new.
| Option | Price | Stock | |
|---|---|---|---|
| Default Title | $1.00 | in stock | Compare delivered price → · Checkout at PeteCo Supply, LLC. |
Prices and stock from www.petecosupply.com’s public catalog, last checked 2026-11-06 11:22 UTC. “Order via Kaupia” shows the delivered price to your zip (item + the store’s shipping + est. tax) for participating merchants, which fulfill directly. “Checkout at the store” uses the store’s own payment and support. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:d06db326-3c2d-4cb3-9242-c6be5dcdebf8; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.