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Your cart is empty. Hunter Replacement Spring Seal for PGP model sprinkler rotors. Besides fitting all models of PGP pop-up rotors this fits the I-20-12 (12" pop-up model only).
Please Note: Spring Seat Sold Separately.
Part # 181500 Installation Instructions:
Removing the old seal: 1. Unscrew the body cap and remove the internal assembly. 2. Place the base of the riser on a solid surface and grip the spring and riser body firmly. 3. With your other hand, snap off the body cap. With your palm on top of the logo cap, pull up with your fingers. 4. While still gripping the spring and body, remove the rubber seal. When you remove the seal, the tension in the spring will be released. 5. Remove the plastic spring seat.
Installing the new seal: 1. With the base of the riser on a solid surface, push the retraction spring down below the nozzle turret and hold it there. 2. Drop the rigid-plastic spring seat onto the riser, grooved side down, so it rests on the spring. 3. Carefully work the new flexible rubber seal, flat side up, onto the nozzle turret, and then down onto the riser body. Take special care not to twist or deform the flexible seal as you work it down over the gap between nozzle turret and riser shaft. 4. Snap the body cap onto the body. The cap will slide down freely once past the ring at the top of the nozzle turret. 5. Carefully release your grip on the spring. 6. Exercise the assembly several times (push the cap down and let it be pushed back up) to ensure the parts are seated and do not stick. 7. Reinstall the assembly in the sprinkler body, screwing the cap on tightly with your hand. Be sure no threads can be felt under the body cap—if you can feel the threads, the seal is not seated properly.
Note: The new riser seal incorporates improvements that increase the durability and life of service. Before turning on the sprinkler to check for leaks, necessary adjustments and proper retraction, you should check the final installation height
John & Earline
Reviewed in the United States on May 1, 2025
Fits perfectly on riser shaft. No more leaks.
thebadpoppa
Reviewed in the United States on March 24, 2025
Great quality, would buy again
rhinoj
Reviewed in the United States on February 2, 2025
These seals help to extend the life of the sprinkler heads. They are easy to install.
Harold Behnke
Reviewed in the United States on August 31, 2024
Did the job
zachariah c bensin
Reviewed in the United States on October 19, 2024
And you don’t have to waste money on new ones.
Andy
Reviewed in the United States on September 21, 2023
I couldn't get these to fit on my Hunter PGP sprinkler heads. That is, they slide onto the sprinkler head itself, but the head then doesn't fit into the outer can (the top doesn't screw on the whole way). When the top is not screwed on completely, the sprinklers leak even worse than before.Perhaps a bad batch? I will be trying these seals from a different source.
Thomas Hays
Reviewed in the United States on August 14, 2022
I went around to the local sprinkler shops and big box stores, and they did not (want to) stock repair parts for the ubiquitous PGP sprinklers. These fixed the water leaking from the case threads, and saved me replacing six sprinkler heads!The old gaskets were a bit tough to remove, and I was looking for a tab, unlock, etc.... but you really just smash the retention ring over the sprinkler head (after separating the spring seat ring and gasket ring. These just snap over the rotor head.Works great and saved a bunch of money!
Yak Driver
Reviewed in the United States on June 11, 2022
Watch utube for instructions on how to replace seal. Great value compared to entire sprinkler head replaced.
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