Rain Bird FSTINSERT - Flanged PPS Flow Sensor Insert - FSTINSERT
Genuine Rain Bird FSTINSERT (M80303) flanged PPS insert assembly engineered as a direct replacement for T-type (tee) flow sensors in the Rain Bird FS series. This OEM insert restores accurate flow sensing in irrigation lines and allows service technicians to replace the internal insert without removing the entire sensor body.
Installers should verify model fit in the FS-series product manual before ordering. For safe operation, use in accordance with Rain Bird installation guidelines and observe non-potable labeling where present. For out-of-stock or specific model questions, consult Rain Bird technical documents or contact an authorized distributor.
Features
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OEM compatibility: Direct replacement for Rain Bird FS-series tee flow sensors (T-type), including PVC-tee models.
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Design purpose: Flanged PPS insert assembly designed for reliable flow measurement and straightforward field servicing.
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Certification: Listed on Rain Bird product documentation as the replacement insert and shown as ASSE-certified for irrigation equipment; marked non-potable where applicable.
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Service advantage: Replace the insert to restore accuracy and avoid full sensor replacement—saves time on maintenance and minimizes system downtime.
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Durable construction: Engineered for irrigation environments and built to meet Rain Bird accessory standards as an M80303/OEM part.
What our Experts Think
Q&A
Q: What is the Rain Bird FSTINSERT used for?
A: It is a flanged PPS insert used to enable accurate flow measurement when installing Rain Bird flow sensors in compatible irrigation pipelines.
Q: What is the FSTINSERT compatible with?
A: It is designed for use with Rain Bird flow sensor assemblies in larger commercial irrigation systems.
Q: What material is the FSTINSERT made of?
A: PPS (polyphenylene sulfide), a high-strength, corrosion-resistant engineering plastic.
Q: What is the benefit of using this insert?
A: It ensures secure, stable sensor placement for reliable flow readings and system monitoring.
Q: Is it suitable for harsh irrigation environments?
A: Yes, PPS construction provides durability against chemicals, pressure, and underground conditions.
Q: Does it improve flow measurement accuracy?
A: Yes, it helps maintain correct sensor positioning for consistent and accurate flow data.
Maintenance Tips
- Rain Bird FSTINSERT (Flanged PPS Flow Sensor Insert Assembly)
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Insert-style flow sensor body component used in Rain Bird commercial irrigation systems
- Designed to provide a mounting interface for FS-series flow sensors in pipeline installations
- Uses a flanged PPS (polyphenylene sulfide) construction for high strength and chemical resistance
- Enables installation of a flow sensing element directly into a pressurized irrigation mainline without full tee replacement
- Supports accurate flow monitoring for leak detection, zone diagnostics, and system protection (Flo-Watch functionality)
- Works with Rain Bird FS series flow sensors (e.g., FS350B, FS200, FS300 variants depending on pipe size)
- Rated for commercial irrigation environments (golf courses, parks, stadium systems)
- Designed for underground or valve-box installation with long-term durability and low maintenance
- Part of Rain Bird’s modular approach where insert + sensor + transmitter/controller integration can be configured per system design
Damage 
Loss 
Theft 
