Magic Plastics 2" pump union split nut repair fitting. 2" FPT thread to suit 2" MPT threaded pumps or fittings. This split nut can be used to replace a broken pump union threaded nut without the need for re-plumbing. Same as this. Suits thread diameter approx 76mm 

70mm internal sleeve diameter. Also used to adapt thread from Maxiflow pumps to newer style jet pumps.

Suits: 

• Waterway Executive pumps, Hi-Flo pumps 
• Aquaflo XP2 and XP2E pumps 
• LX LP & WP pumps  (LP200, LP250, LP300, WP200-II, WP250-II, WP300-II
• Spanet XS-30 Jetmaster pumps 
• Davey Spaquip QB 'AUS' pumps since 2015 (2/2.5/3HP) QB2001, QB2002, QB2501, QB2502, QB3001, QB3002
• Spatex SX 200, SX 250, SX 300, SX 200-II, SX 250-II, SX 300-II
• Balboa SuperWow, Ultimax & Vico pumps
• 2"/50mm FBT Thread - measures ~78-79mm OD on pump

Does Not Suit: Most other pool pumps including Astralpool, Hurlcon, Poolrite, Onga, and most other pool pumps.