

🛠️ Fish your conduit runs like a boss — no snags, no stress!
The Greenlee 1" Piston is a professional-grade tool designed to streamline fishing wire through conduit runs. Featuring a flexible foam body for airtight sealing, a color-coded embossed size disk for quick identification, and a robust steel center rod with loops, it excels in navigating bends and long distances. Manufactured in the USA and trusted by industry pros, this piston ensures durability and efficiency on every job site.
| ASIN | B0026GZ8TE |
| Best Sellers Rank | #474,414 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #836 in Electrical Conduit Fittings |
| Brand Name | Greenlee |
| Color | Green |
| Customer Reviews | 4.4 4.4 out of 5 stars (36) |
| Hole Count | 1 |
| Included Components | 1 Greenlee Branded Product |
| Item Type Name | Tool |
| Item Weight | 0.01 Ounces |
| Manufacturer | Greenlee Tools, Inc. |
| Material Type | Alloy Steel |
| Operation Mode | Manual |
| Pin Hole Diameter | 1 Inches |
| Sheet Count | 30 |
| UPC | 783310110408 |
C**O
Makes Fishng Wire Through Conduit Easier
Works excellent for sucking a string through long sections of conduit for pulling a fish tape through it. I was able to hook my shop vaccum to one end of the conduit and suck the piston through it tied to string from the opposite end. Was much easier than I could do it with the string tied to a plastic bag. I have used plastic bags for doing this on shorter distances before but they couldn't get the job done on this pull. I was worried about it being able to get around the angle joints but it travels like a jet. Make sure you have something on the end of your vacuum nozzle, if your nozzle has a larger diameter, because you will be fishing it and a lot of string out of your vacuum if you don't! It's pricey but it's necessary.
T**K
Works better than bag
I had about a 150’ run of 1” conduit with multiple bends. I tried plastic bags and a piston shape that I made myself but kept coming up about 10’ – 30’ short depending on the direction I tried to pull from. I kept hitting a snag. This piston went through without any problems on the first try.
T**N
Highly recommend
Works great for shooting string down 120’ long 1” Grey PVC conduit with 2 - 90° and 1 - 45° elbows. Made pulling my #10 wires effortlessly with a little wire lube. Highly recommend this product.
J**L
Excellent
Worked perfectly! Worth the money
K**A
Did the job
I usually just use a wadded piece of plastic - but I had a pull that I was worried about - so stepped up to this - kind of expensive for just a piece of foam - but got the job done - beats the alternative - not getting the job done !
A**X
Time saver
Good price and worked perfect, real time saver
T**N
Gets the job done
Worked fine. Had a bit of a holdup on corners but 1” conduit corners don’t have a big radius. Used it to pull 4 different pull strings. Would buy again. I tied it like a fishing lure. That seemed to work well.
D**Y
Good buy!
Just what I wanted!
Trustpilot
2 days ago
2 weeks ago