Wide compatibility: Designed as a replacement for Graco Ultra 395 PC electric airless sprayers​ and Graco 117-559. Fits the suction/feed section precisely—no sanding or modifications required. Say goodbye to leaks and pressure drops caused by ill-fitting universal parts High-quality materials:The 117559 o-ring replacement for graco crafted from premium industrial-grade Fluororubber , not cheap NBR. Withstands peaks up to 230℃ and harsh weather. Features a low compression set (25% @150℃/1000h), preventing seal failure from aging, swelling, or deformation Leak-Free Sealing: Utilizes a precision annular structure and superior elasticity to form a tight bond. Effectively blocks coating and gas leaks to ensure a consistent spray pattern and protecting your equipment. Excellent performance: This 0-2740 O-Ring Built for reciprocating motion and harsh job sites. Resists abrasion and humidity, preventing cracking or hardening. Delivers a significantly longer service life than standard rubber, reducing the cost of frequent replacements. Versatile Application: The 117559 o-ring Ideal for water-based and oil-based coatings in home decor or small engineering. One-piece molded with a smooth, burr-free surface. Complies with industrial safety standards, releasing no harmful substances for worry-free operation