Previous page Next page 1 Build-In Handle 2 Level Indicator 3 Large Capacity 4 Large Wheels 5 Rotatable Emptying Spout 19.8 Gallon Portable Tank Portable Water Tanks 19.8 Gallon (75L) Capacity 10.6 Gallon (40L) √ Air Release Valve √ √ Large Wheels √ √ Rotatable Spout x √ Level Indicator x 19.8 Gallon (75L) Capacity 10.6 Gallon (40L) √ Air Release Valve √ √ Large Wheels √ √ Rotatable Spout x √ Level Indicator x 19.8 Gallon (75L) Capacity 6.6 Gallon (25 L) √ Air Release Valve √ √ Large Wheels √ √ Rotatable Spout √ √ Level Indicator √ Previous page 10.6 Gallon Portable Tank Learn More 10.6 Gallon Portable Tank Learn More 6.6 Gallon Portable Tank Learn More Next page How to securely connect the water tank to the RV? What type of fittings or diameter sewage pipes should be used? Please use the normal RV sewer hose kit which fits 3-inch slips or 3-inch threaded dump-station pipes. Is there any need to use waterproof tape or rubber tape at the joint of sewage pipe and sewage tank to prevent leakage? These are not needed. Can a regular water hose be used for filling this water tank? Yes, it has a large opening.