The product is a replacement T handle made by the brand Racor. It is designed for use in boat parts, specifically for inboard engines and components, in the intake and fuel systems.
Racor RK 23183 Replacement T-Handle Kit
Suits all Racor Turbine units from the 900 & 1000 Series.
The T-handle has been redesigned to enable easier element changeouts. The threaded shaft is now slightly longer than existing T--handles and is completely interchangeable with product already in the field. When an element service is required, remove the T-handle, lid and used element. Install new element and press it down until the bottom engages the internal fuel shut-off valve. Re-install the lid and T-handle and as the T-handle is tightened, the lid will press down on the element until it is in the correct position. Tighten the T-handle hand tight only.