Frankenplug 4″-S (for straight pipe) – 15 Second Leak Repair!
$89.00
“The ugliest THING you’ll ever love.”
15‑second leak repair
The Frankenplug 4 inch straight pipe leak repair tool fixes leaks fast in straight‑pipe PVC lines that do not use a return fitting. Works for a 15‑second leak repair in in concrete, fiberglass, and vinyl pools. Includes a custom beauty ring “eyeball” cap, fits 1½″ plumbing, and can convert to 2″ with the RFS extension. Available in 3″ Mini, 4″, Straight Pipe, and Polaris. Franken Wrench is also available to help with installation or removal of the Frankenplug.
- Custom Frankenplug Eyeball Caps also available in Black (EYE-1) and Grey (EYE-2)
- These are GREEN products; no need to drain any water.
For more information and how-to instructions, visit our BLOG: How to use the Frankenplug!
Description
“The ugliest THING you’ll ever love.”
The Frankenplug 4″ S is engineered specifically for 4-inch pool fittings,to fix cracked PVC lines that do not use a return fitting (straight pipe leak repair). Designed for concrete, fiberglass, and vinyl pools, this patented tool delivers a 15‑second leak repair without draining water, cutting concrete, or digging.
Each Frankenplug includes a beauty ring “eyeball” cap, giving your return a clean finished look after repair. If your pool uses 2″ plumbing, simply add the RFS extension to convert the plug for larger pipe.
The Frankenplug is also available in a 4″ Frankenplug (standard) or cracked PVC lines that DO NOT use a return fitting. For shorter repairs, PoolPal USA offers the 3″ Mini, Straight Pipe senior version (RFS14‑S) , Frankenplug Senior 14″, and the Polaris Frankenplug.
Important: If your leak is in the light niche, main drain, or a structural crack, use the Aqua Locks Concrete Staple Repair Kit instead!
Winterizing: Add the PoolPal USA ½″ Rubber Pool Plug to winterize your Frankenplug installation.
If your fitting is incompatible, no worries! Simply return it within 30 days.
For more information and how-to instructions, visit our BLOG: How to use the Frankenplug!
Video Examples:
Additional information
| Weight | 4.5 oz |
|---|---|
| Dimensions | 1.5 × 4 × 1.5 in |
| Length | 4" |
| Repair Depth | 4" |
| Fitting Compatibility | PVC lines that do not use a return fitting |
| Plumbing Size | 1½″ (2″ with RFS‑2 extension) |
| Pool Type | Concrete, Fiberglass, Vinyl |
| Includes | beauty ring “eyeball” cap |
| Winterizing | Compatible with RFSW plug |





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