Hayward SP1418DDGR Large Hydrostream Directional Inlet / Return Fitting
The Hayward SP1418DDGR is a directional-flow inlet (return) fitting — part of the “Hydrostream” line — designed for use in in-ground pool plumbing. It helps deliver water back into the pool with proper flow direction and circulation, offering reliable performance and a robust build for long-term pool service needs.
Key Features
- 1½″ male-pipe-thread (MPT) inlet — connects to standard 1½″ pool return plumbing for easy installation.
- ¾″ hydro-stream orifice — sized to deliver efficient return flow while helping promote circulation and turnover in pool water.
- Dark-gray plastic / ABS construction — durable, chemical- and UV-resistant, built to withstand pool water conditions and exposure.
- Directional return design — helps direct return flow for better water circulation and distribution.
- Compatible with concrete, vinyl, or fiberglass gunite pools — a versatile OEM-grade return fitting replacement or upgrade.
Specifications
- Manufacturer: Hayward Pool Products
- Part Number: SP1418DDGR
- Fitting Type: Hydrostream directional return/inlet fitting
- Inlet Connection: 1½″ MPT (male thread)
- Opening/Orifice: ¾″ (hydro stream outlet)
- Material: Pool-rated plastic / ABS, dark-gray finish
- Application: Pool return plumbing, circulation, flow redirection
When & Why to Use SP1418DDGR
Choose the SP1418DDGR when replacing a worn or damaged return fitting, or when updating pool plumbing to ensure proper water flow and circulation. Its durable construction and standard sizing make it a reliable OEM-grade part for pool service professionals or homeowners maintaining their equipment. The directional flow design helps with water turnover and can enhance circulation efficiency, especially in larger pools or after plumbing adjustments.
Installation & Maintenance Tips
- Use proper thread seal (pool-rated PVC thread sealant or Teflon tape) when installing to avoid leaks.
- Ensure return plumbing is clean and free of debris before threading in the fitting, to avoid cross-threading or damage to the orifice.
- Check orientation — align the fitting so the return stream is directed appropriately for optimal circulation.
- Inspect periodically for cracking, wear or chemical degradation — replace if fitting shows signs of stress, especially in saltwater or high-chemical pools.
