Suitable for a wide range of hydraulic systems including agricultural machinery, construction equipment, automotive, electronics industry, machine tools, aerospace, mobile hydraulics and other equipment applications. The male dust cap & female plug cover are designed for ease of use. Fits perfect for 3/8 body hydraulic quick couplers, fits ISO 7241-A like Parker 6600,Faster AN,Tomco 5600,Aeroquip 5600,Dixon K,Snaptite 61,Stucchi BIR etc Our hydraulic dust covers effectively protect your hydraulic components from harmful particles that can cause damage and affect performance. These dust caps and plug covers are made of durable and long-lasting rubber with a solid exterior, and excellent wear and corrosion resistance to ensure they can withstand the rigors of frequent use and harsh environments. This makes protecting your hydraulic fittings from dust quick and easy. Applications - Suitable for a wide range of hydraulic systems including agricultural machinery, construction equipment, automotive, electronics industry, machine tools, aerospace, mobile hydraulics and other equipment applications. 3/4 iSO A Hydraulic Hose Caps and Plugs Couplers Male Dust Long Lasting Rubber - These dust caps and plug covers are made of durable and long-lasting rubber with a solid exterior, can resist mechanical damage, and oil or chemical corrosion and have excellent wear and corrosion resistance to ensure they can withstand the rigors of frequent use and harsh environments. Size - Hydraulic coupler body size: 3/4, Male: 40 x 275mm / 1., 57 x 10., 83 (W*L); Female: 36 x 280mm / 1., 42 x 11., 02 (W*L); Includes 4 male dust caps and 4 female dust plugs, fits for ISO 7241, also fits many pneumatic couplings. Hydraulic Cap And Plug Kit Hydraulic Coupler Dust Cap Plug Set 3/4 ISO-B,CEKER Hydraulic Dust Covers Male Female Quick Connects Fittings,Red Cap With Retention Ring Keeps Cap Attached To Hose 2Set Male And Female Dust Cap Set