Hayward SPX1105Z2 Hose Adapter - 1-1/2 inch MPT x 1-1/4 inch Smooth

What This Part Is Used For
The Hayward SPX1105Z2 Hose Adapter is used in above ground pool plumbing to transition between a threaded port and a smaller smooth hose connection. It has a 1-1/2 inch MPT thread on one end and a 1-1/4 inch smooth connection on the other.

Why This Part Matters
Using the wrong size adapter can cause leaks, loose connections, and reduced flow. That can show up as weak returns or a pump that struggles to prime. Replacing the correct size adapter restores a secure transition and steady circulation.

Key Features and Specifications

• Manufacturer part number SPX1105Z2
• Hose adapter
• 1-1/2 inch MPT x 1-1/4 inch smooth
• Transition fitting for above ground pool plumbing
• Service replacement component

Installation and Fitment Guidance
Confirm the hose size on the smooth side before installation and ensure it seats fully. Check for leaks after restarting the pump and re-tighten clamps if needed. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward manufactures a full line of pool equipment including pumps, filters, heaters, automation, cleaners, and chlorination solutions. Their above ground products are built to work with common hose and fitting sizes to simplify installs. Genuine Hayward adapters help maintain proper fit and flow. This reduces downtime during the season.

Common Service Context
Technicians typically encounter this adapter when replacing above ground hoses, upgrading equipment, or correcting mismatch issues between old and new components. It is often identified when a 1-1/2 inch port needs to connect to a 1-1/4 inch hose run.