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Great product, great price easy to install would highly recommend this product
This Krowne Wall Mount Faucet uses a standard flat rubber 1/2-inch washer.
This faucet takes 1/2'' NPT washers.
Thanks for checking with Tundra Restaurant Supply to ensure our product meets your needs. There are two install kits that work with this faucet, Tundra number 13447 and 13435. Links are provided below for your convenience. If this is a replacement faucet, there may already be mounts attached to the existing plumbing. If this is a new addition, the faucet mounts to the wall exterior and the install kits connects the interior wall plumbing to the faucet wall connections on the exterior. https://www.etundra.com/commercial-plumbing-supplies/faucet-parts/installation-supplies/encore-plumbing-kn40-2020-wall-mount-faucet-installation-kit/ https://www.etundra.com/commercial-plumbing-supplies/faucet-parts/installation-supplies/kason-60451kl0700-wall-mount-faucet-installation-kit/
Check the connection for cracks and make sure the old washer has been removed from inside the fittings. Try using Teflon tape or pipe dope on the connection to seal the leak. Without knowing exactly where the leak is I can not recommend any parts. https://www.etundra.com/restaurant-parts/tools/tape-sealers/commercial-one-half-inch-ptfe-tape/ https://www.etundra.com/restaurant-parts/tools/tape-sealers/commercial-pipe-joint-compound/
It probably is cracked or defective,replace the faucet.