Dual-Flush System; Anti-Siphon Fill Valve; Impact Resistant HDPE Tank, Insulated to Prevent Condensation; Medium Inspection Opening for Flush Actuator Plates Sigma, Bolero, Mambo, Tango; Limited Lifetime Warranty on Tank and Carrier; Suitable for Residential Washdown Floor Mounted Toilets with Rear Water Inlet Toilets; Limited Lifetime Warranty (Tank) 17-5/16" x 42-1/2", 1.6/0.8 GPF, HDPE, Toilet Tank