Plunge into the tranquility of the SaunaLife Model S2B hot and cold immersion tub in elegant black. A must-have for home workout recovery or as a cold-plunge after a hot sauna session. Black Thermo-Pine materials (lasts up to 2X longer than Cedar) Luxury outdoor cold/hot immersion tub Designed for outdoor ergonomic cold/hot tub bathing experiences Spacious interior holds over 200 gallons of pure water bathing pleasure Thick black contoured fiberglass lining provides enhanced bather comfort Durable Thermo-Pine tub surround (1.65" thick 0.74cm) Matching Black Thermo-Pine wood steps for easy access Exterior dimensions - 74.4"L (189cm) x 46"W (117cm) x 41"H (104cm) Interior dimensions - 66.5"L (169cm) x 39.1"W (99cm) x 36" Deep (91cm) Designed by SaunaLife and handcrafted in Northern Europe Foundation Beams 3.94" (10cm) x3.94" (10cm) Chiller Connections 3/4" (2cm) NPT Fiberglass Insert - Black - Ergonomic