Replacement for 970-0770: this is a replacement handle extension for a Pfister single-handle valve. It is designed and manufactured to be compatible with Pfister Secure Pfit Trims and works with cold and hot water valve single handles. Easy to install and fix - Simply replace the handle adapter and it is compatible with Pfister shower or tub fixtures in minutes. - No professional plumber needed; a quick, efficient process with common tools ensures a proper result. Handle Adapter Size and fit - Thread size: 3/8 inch (9.4 mm). - Designed to fit standard shower or tub installations. - Stem length: 2-5/16 inches (58.4 mm). - Stem width: 21/32 inch (16.5 mm). - Note: set is only compatible with PFISTER long handle Safe Pfit Trims. Quality construction - Made of brass for durability. - The stem kit is built to withstand water pressure and hot and cold temperatures. - Provides long-lasting performance and reliability. What you get and why it helps - A straightforward solution to repair or update your Pfister valve without replacing the entire faucet. - All parts required for installation are included, simplifying the repair or upgrade process. Use scenarios - Replacing a worn or loose Pfister handle extension on a shower or tub with a single-handle valve. - Upgrading a Pfister valve to restore smooth operation when the original trim uses Safe Pfit Trims. - Retrofitting or refreshing a Pfister shower/tub setup to match the long-handle Safe Pfit Trims without a full faucet replacement.