Larsen Supply 02-1561 O-ring 3/8x5/8x1/8 R-70 2 Pack

Product Description

The Larsen Supply 02-1561 is a size 17 R-70 compound O-ring sold as a 2-pack. It measures 3/8 inch inside diameter, 5/8 inch outside diameter, and 1/8 inch cross-section width. The R-70 elastomer formulation provides reliable sealing performance in plumbing and fluid-handling applications where moderate pressure and temperature resistance are required. These O-rings are used to create leak-free static or dynamic seals at threaded connections, valve stems, faucet cartridges, and similar service points. Plumbers and HVAC technicians keep standard O-ring sizes on hand for routine maintenance and emergency repairs. The carded 2-pack format is suited for both bench stock and field service kits.

Size 17 O-rings at this 3/8 x 5/8 x 1/8 inch dimension are commonly specified in residential and light commercial plumbing fixtures, faucets, valves, and related water-supply equipment. They are a standard replacement seal for worn or cracked O-rings encountered during valve rebuilds, cartridge swaps, and fitting service. Technicians working on potable water systems, irrigation controls, and low-pressure fluid circuits will find this size applicable across a wide range of service calls.

Key Features

• Size 17 O-ring: 3/8 inch ID x 5/8 inch OD x 1/8 inch cross-section
• R-70 elastomer compound for moderate pressure and temperature sealing
• 2-pack quantity supports back-to-back repairs or bench stock replenishment
• Carded retail packaging keeps O-rings clean and identified until use
• Standard sizing fits a broad range of plumbing valves, faucets, and fittings

Compatibility

Designed as a standard size 17 replacement O-ring for plumbing valves, faucet cartridges, and fluid-handling fittings that require a 3/8 x 5/8 x 1/8 inch R-70 seal.

Installation Notes

Shut off the water supply and relieve system pressure before disassembling any valve or fitting to replace an O-ring. Lightly lubricate the new O-ring with a compatible, water-safe grease before seating it to reduce the risk of tearing during assembly. Inspect the seating groove for nicks or debris that could compromise the seal. Work performed on potable water systems should comply with applicable local plumbing codes.