Filter Bulkhead Adapter 2025 – X251168

Description

Master Spas X251168 Filter Bulkhead Adapter — 2025 Compatibility

The X251168 is a threaded PVC adapter that bridges the difference between 2025-generation Master Spas filter threads and pre-2025 bulkhead fittings. When Master Spas redesigned their filtration system for 2025 models, the filter housing thread specification changed from coarse to fine thread. This small adapter converts 2″ male fine thread to 2″ male coarse thread, enabling cross-year filter compatibility.

Key Details

• Part Number: X251168
• Thread Conversion: 2″ Male Fine Thread → 2″ Male Coarse Thread
• Material: PVC
• Purpose: Allows 2025-spec filters (fine thread) to install in pre-2025 coarse-thread bulkheads

When You Need This Adapter

If you own a pre-2025 Master Spas hot tub or swim spa and are purchasing 2025-generation filter cartridges, this adapter ensures they thread into your existing filter bulkhead correctly. It is included with some 2025 filter sets and with the X268560 skimming filter.

Compatibility

Works with all Master Spas filter bulkhead assemblies that use the standard 2″ thread. Applicable across all Master Spas lines transitioning to 2025-style filters.