SING F LTD 2 Pack Circulation Pump O Ring 60.325x49.21x5.55 mm Replace OEM 008-005RP GT-263 Compatible with ACO 005 008

["- Compatibility: Compatible with ACO 005 008 for pump body sealing; confirm housing style and groove size before purchase for correct fit.","- OEM Reference: Replace OEM 008-005RP and GT-263; match these codes on your manual or old seal to verify compatibility.","- Dimensions & Material: 60.325 x 49.21 x 5.55 mm; molded black rubber built for common body cover grooves; measure channel width and ring thickness during maintenance.","- Function: Forms a tight seal between housing halves to reduce air or fluid leaks, stabilize pressure, and support routine rebuilds or leak fixes with basic hand tools.","- Applications & Pack: Ideal for aquariums, garden ponds, hydroponics, light industrial benches, and school labs; 2 Pack lets you keep a spare for quick weekend maintenance."]