Hydroquip 42-2391A-K 2 inches tailpiece (2 inches MBT x 3/4 inches barb, 90 degree) replacement 42-2391-K

Product Description

The HydroQuip 42-2391A-K is a 90 degree heater tailpiece with a 2" male British thread (MBT) inlet and a 3/4" barb outlet for hose connections. It is intended for low-flow heaters and spa plumbing assemblies, providing compact routing in tight spaces while maintaining secure, leak-resistant connections. The tailpiece is compatible with HydroQuip OEM systems and 24-hour circulation pump setups; alternate part numbers include 42-2391-K and 86-02391.

• 90 degree elbow tailpiece with 2" MBT inlet and 3/4" barb outlet
• Designed for low-flow heaters, 24-hour circulation pumps, and spa plumbing assemblies
• OEM HydroQuip replacement; alternate part numbers 42-2391-K and 86-02391

Product Highlights

90 degree 2" MBT to 3/4" barb tailpiece for low-flow heater and spa plumbing; HydroQuip OEM replacement with alternate MPNs 42-2391-K, 86-02391.

Product Information

Standard Information

• Brand: HYDROQUIP
• Manufacturer Part Number: 42-2391A-K

Technical Specifications

• Brand: HydroQuip
• Manufacturer Part Number (MPN): 42-2391A-K
• Alternate Part Numbers: 42-2391-K, 86-02391
• Type: Heater tailpiece (90 degree elbow)
• Size / Fittings: 2" MBT x 3/4" barb
• Angle: 90 degree
• Application: Used on low-flow heaters and spa plumbing; compatible with 24-hour circulation pump systems and HydroQuip OEM spa systems
• Category: Heater unions & parts / Plumbing & fittings