Check the listing for details. 3/8 Hydraulic Quick Coupler /Coupling | ISO B 7241 | NPT | 4 Sets(Male & Female). Condition: New. Listed at 42.50 USD. NPT Quick Disconnect Couplings Size: 3/8" NPT Standard: ISO 7241-1 Series "B" Material: Carbon steel with carbonated black tip making it more corrosion resistant Interchangeable with: Snap Tite 61, Parker 6600, Aeroquip 5600, Dixon K, Safeway S56, Tomco A5600, Stucchi BIR, Faster HNV Seals: NBR Features: 4000 PSI Rating, Hardened Steel Plugs Shipping: Item ships from Houston, TX Additional Sizes: SIZESet of 1 Set of 4 Set of 101/4" Series A $19.99 $34.99 $89.991/4" Series B $21.99 $39.99 $99.993/8" Series A $20.99 $42.50 $99.993/8" Series B $22.99 $42.50 $109.991/2" Series A $21.99 $52.99 $119.991/2" Series B $24.99 $54.99 $129.993/4" Series A $24.99 $64.99 $149.993/4" Series B $29.99 $69.99 $159.991" Series A $34.99 $109.99 $259.991" Series B $39.99 $119.99 $279.99NPT Quick Disconnect Couplings Size: 3/8" NPT Standard: ISO 7241-1 Series "B" Material: Carbon steel with carbonated black tip making it more corrosion resistant Interchangeable with: Snap Tite 61, Parker 6600, Aeroquip 5600, Dixon K, Safeway S56, Tomco A5600, Stucchi BIR, Faster HNV Seals: NBR Features: 4000 PSI Rating, Hardened Steel Plugs Shipping: Item ships from Houston, TX Additional Sizes: SIZESet of 1 Set of 4 Set of 101/4" Series A $19.99 $34.99 $89.991/4" Series B $21.99 $39.99 $99.993/8" Series A $20.99 $42.50 $99.993/8" Series B $22.99 $42.50 $109.991/2" Series A $21.99 $52.99 $119.991/2" Series B $24.99 $54.99 $129.993/4" Series A $24.99 $64.99 $149.993/4" Series B $29.99 $69.99 $159.991" Series A $34.99 $109.99 $259.991" Series B $39.99 $119.99 $279.99