The Waterway Pump Union [Fire/Hot Stick] [1-1/2" FBT x 1-1/2" Slip] [w/Gasket] (LB4005640) is a replacement plumbing fitting or valve component from Waterway Plastics, made for compatible pool, spa, or bath plumbing assemblies. The listed part number is LB4005640, making it easier to match this item against an existing component, parts diagram, or previous service record. Key listed details include Fire/Hot Stick, 1-1/2" FBT x 1-1/2" Slip, w/Gasket, 1-1/2", which should be compared against the original part, equipment label, or owner documentation before ordering. Correct part matching is important for any repair because small differences in size, port style, thread type, voltage, color, or model compatibility can affect installation and performance. This item is best used as a direct replacement where the application details match the existing component. If you are unsure about compatibility, compare photos, measurements, and model information before installation. Genuine replacement style item from Waterway Plastics for compatible fittings & valves: unions applications Use part number LB4005640 to help confirm the correct match Listed details include Fire/Hot Stick, 1-1/2" FBT x 1-1/2" Slip, w/Gasket Helps restore proper fit, function, and serviceability when the existing part is worn or damaged Recommended for pool, spa, or bath service where compatibility has been verified
![Waterway Pump Union [Fire/Hot Stick] [1-1/2" FBT x 1-1/2" Slip] [w/Gasket] (LB4005640)](https://cdn.shopify.com/s/files/1/1751/9347/products/LB4005640.jpg?v=1486204790&width=480)
![Waterway Pump Union [Fire/Hot Stick] [1-1/2" FBT x 1-1/2" Slip] [With Gasket] (LB4005640)](https://cdn.shopify.com/s/files/1/0574/4014/1354/products/LB4005640.jpg?v=1769976164&width=480)
![Waterway Pump Union [1" Slip x 1" Slip Pump Union] (400-2000)](https://cdn.shopify.com/s/files/1/0574/4014/1354/products/400-2000.jpg?v=1769976165&width=480)
