Overview Reviews Similar Products Product Description Heater Tailpiece 1.5" For Spa Or Bathtub, Part # 2-05-0038-B Measures 2 3/8" Outer Thread Diameter Also Known As 417-4090 Part # 2-05-0038-B O-Ring Not Included Location: SMR5B19 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Heater O-Ring 1 1/2' for 2-05-0038-B tailpiece $1.95 Add to Cart Quick view Master Spas Heater Tailpiece 2" x 2" - X277700 $13.86 $10.95 Add to Cart Quick view Heater Tailpiece 2" x 2" - 2-05-0039-C $13.86 $10.95 Add to Cart