a rigid female cap, a rigid double sided male component, and a rigid insert of a size to fit therebetween;

wherein the compression fitting has an opening therethrough when assembled;

wherein the rigid insert comprises a tube portion and an approximately perpendicular insert flange portion aligned with one open end of the rigid insert;

wherein the rigid female cap comprises a rim around a first opening and a second opening through which the tube portion is inserted when assembled;

wherein the tube portion and the rim of the rigid female cap have a gap therebetween when assembled;

wherein the tube portion extends through and beyond the rim of rigid female cap when assembled;

wherein the approximately perpendicular insert flange portion is configured to pass through the second opening but not the first opening when assembled;

wherein the rigid double sided male component comprises a complementary male cap end that is complementary to the female cap, a male hose end for attaching to a hose opposite the complementary male cap end, and an internal perpendicular transition plane between a larger opening of the complementary male cap end and a smaller opening in the male hose end, wherein the transition plane is proximate the male hose end;

wherein an inner circumference of the tube portion is smaller than an inner circumference of the complementary male cap end;

wherein the second opening in the rigid female cap has a circumference that is larger than a circumference of the approximately perpendicular insert flange portion; and

wherein the approximately perpendicular insert flange portion rests against the internal perpendicular transition plane when assembled.