31 gal TANKMfg# HT 198: 24"W x 48"L x 9"D x 12"B 34gal* Use a hole saw to create holes for ABS fitting.* For 3" fitting use a 3 1/8" hole saw.* For 2" fitting use a 2 1/8" hole saw.* For 1 1/2" fitting use a 1 5/8" hole saw.* Use ABS cement to install fittings.* Repairs can be made with ABS cement.