The DCGG5701 heavy-duty 1/8" NPT Grease Gun Coupler is used with hydraulic type grease fittings for cordless grease guns with max operating pressure up to 10,000 psi.For use with hydraulic type grease fittings Max Pressure: 10000 Rated for cordless grease guns with max operating pressure up to 10,000 psi categoryName:Miscellaneous Attachments [8528] Item Weight:0.075 Length:3.826 originCountry:IN Volume:0.003 Warranty:30 Day Money Back Guarantee"