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Loc-Line 1/2 inch In-Line Check Valve


Item #: LL1161

In Stock

Part# : 39851
Description: 1/2" Ball-Socket In-Line Check Valve (Loc-Line)

Manufacturer information

Loc-Line Aquarium Supplies
Loc-Line is the originator of the modular hose system. They offer a selection of hose sizes, various nozzles, connectors and accessories that can be assembled to optimize liquid, air, vacuum and gooseneck applications. After years of being frustrated by metal coolant hoses that never would stay where they were aimed and plastic hoses with metal positioning rods that broke, Arnold Lockwood conceived the idea for a modular hose that became Loc-Line. In 1981 Lockwood Products was started to develop that idea and the first Loc-Line was shipped in August of 1983. It quickly became the standard for low pressure coolant delivery and equally as quickly spread around the world.

5 Stars

tamara mahe

Reviewed on
March 15, 2011

Yes, I would recommend this.

Normal check valve

Like all check valves, they do tend to fail over time. We ordered two, one still holds, but one does allow some seepage, but it worked perfect for a year before it started to allow some backflow. We just keep it up towards the surface to the siphon breaks right away anyway. As far as other check valves, these seem to be more reliable and hold longer than other similar check valves. They just need services and replaced just as any would in time.

Was this review helpful? 4 0


Reviewed on
February 26, 2010

Yes, I would recommend this.


cheap peace of mind. works great.

Was this review helpful? 1 0

brent klein

Reviewed on
August 25, 2009

Yes, I would recommend this.

Loc-Line Check Valve

Great for eliminating bulky pluming, easy install.

Was this review helpful? 1 0

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