Best Seller | BUYERS PRODUCTS HBF4 Vent Plug,1/4 NPT,1-3/8 In Vent Plug,1/4 NPT,1-3/8 In •Provides free flow of clean air into hydraulic fluid, oil, chemical, and coolant tanks or reservoirs. •Large, oil-resistant filter elements dirt and dust particles as small as 40 micron. ... more BUYERS PRODUCTS HBF4 Vent Plug,1/4 NPT,1-3/8 In Vent Plug,1/4 NPT,1-3/8 In •Provides free flow of clean air into hydraulic fluid, oil, chemical, and coolant tanks or reservoirs. •Large, oil-resistant filter elements dirt and dust particles as small as 40 micron. | | $9.35 go to store |