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This Watts small area roof drain is engineered with epoxy coated cast iron for long life and durability
Stainless-steel perforated ballast guard with lift handle for debris exclusion and maintenance access
A flashing clamp with an integral gravel stop ensures secure waterproofing membrane integration
Designed for heavy commercial traffic and large floor areas
ZM415SS-4IC
Watts LF3L-100 3/4 - Part of the LF3L Series ADS This Watts small area roofThis 3 4 inch lead free pressure relief valve is used in residential applications to protect against excessive pressure on domestic storage tanks and tankless water heaters. It consists of a lead free copper alloy body with NPT threaded male inlet and NPT threaded female (drain) outlet, test lever, and stainless steel spring. It is ANSI Z21. 22 approved, ASME rated and design certified and listed by CSA. The pressure relief is set at 100 psi (6. 9
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