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Adapter: 3/8

Installing your new AquaPurr?

Adapters are free for your initial installation.

Please use the promo code found in the instructions in the header of the Aerators page.

Use the promo code on the last page of the checkout process.

Adapter connects the 3/8" NPSM female threads of your faucet to 55/64"-27 female threads of the diverter valve. 

This is a rarely used size. If you used one of the colorful plastic keys to remove your aerator then use page 10 of the instructions to determine which metric sized adapter you need.