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Wayne 1-1/2 in. Sump Pump Check Valve (66005-WYN1)
A check valve for the backup pump's discharge line, so water pumped up the pipe can't drain back into the pit.
Sold on Amazon.com, no code needed
Price: $22.50 on Amazon (checked 2026-11-12); Amazon's price can change, and the Amazon page has the current one. Specs below were verified on Wayne's site 2026-11-10.
Discount code: none; Dealectric has no Wayne code, and any Amazon coupon shows on the Amazon page itself.
Buy: https://www.amazon.com/dp/B000BQSCMG?tag=dealectric-20 — opens the Wayne 1-1/2 in. Sump Pump Check Valve (66005-WYN1) listing on Amazon.com at no extra cost.
Warranty: Manufacturer's warranty on request through Amazon customer service (Amazon listing, 2026-11-10). Returns: Amazon's return policy for the listing. Affiliate program: Amazon Associates; tracking cookie: 24 hours. As an Amazon Associate, Dealectric earns from qualifying purchases. All Wayne codes, including the ones the store rejected: Wayne discount codes.
Machine-readable record: /offers.json, id = "wayne-66005-wyn1-check-valve".
Specifications
| Size | 1-1/2 in. |
|---|---|
| Use | sump pump discharge line |
Model: 66005-WYN1. Figures are from the manufacturer's official product page unless a caveat says otherwise.
Compared side by side
The Wayne 1-1/2 in. Sump Pump Check Valve (66005-WYN1) appears in this table next to models from other brands:
Who it's for
A 1-1/2 in. backup-pump discharge line, as in the preferred install where the backup gets its own line (Wayne's Method 1).
Caveats
- The main pump's discharge line needs its own check valve too. If yours doesn't have one, buy a second valve.
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