PVC Liquid Tight Fitting

[Mike106]

(Preface: I am a product manager trying to understand electrician use cases of products, I am not an electrician)

In Home Depot, I am able to purchase a couple of liquid tight fittings, and I'm trying to figure out a couple of things:

1. Why are electricians buying one over the other?
   
2. Do they perform the same? Would you consider them substitutes?
3. Why would a retailer carry both SKUs?

In the PVC bay is this product.
https://www.homedepot.com/p/1-2-in-...-1-Piece-Fitting-20-Pack-LN20DA-CTN/202203078


In the liquid tight part of the aisle, I can choose from metallic and non-metallic fittings, like this one:
https://www.homedepot.com/p/1-2-in-...-Conduit-Fitting-Connector-58133802/204755898

 

[Little Bill]

They are the same product but probably different brands according to the description.
Also, one is a "case" price and the other is an "each" price.

It may be just personal preference as to which one they buy, also may be some buy the "case" item and others buy the "each" item.

 

[SceneryDriver]

In the PVC bay is this product.
https://www.homedepot.com/p/1-2-in-...-1-Piece-Fitting-20-Pack-LN20DA-CTN/202203078

View attachment 19908

I've most often seen these used when whips are pre-made and stuffed with conductors before landing on/between equipment.

In the liquid tight part of the aisle, I can choose from metallic and non-metallic fittings, like this one:
https://www.homedepot.com/p/1-2-in-...-Conduit-Fitting-Connector-58133802/204755898
View attachment 19909

These type of fittings are used where you want to install the fitting, then connect the flex (with or without wire already in the conduit).

I find both types of plastic fittings pretty cheeseball, and have replaced many damaged, cracked, and sun-crazed connectors over my career. They tend to be very fragile, especially in cold temps.

Plastic liquid-tite cuts easier and is probably more flexible, but metal is more durable IMO. With either conduit type, I will use metal connectors every time.


SceneryDriver

 

[buzzbar]

View attachment 19908

I've most often seen these used when whips are pre-made and stuffed with conductors before landing on/between equipment.



These type of fittings are used where you want to install the fitting, then connect the flex (with or without wire already in the conduit).

I find both types of plastic fittings pretty cheeseball, and have replaced many damaged, cracked, and sun-crazed connectors over my career. They tend to be very fragile, especially in cold temps.

Plastic liquid-tite cuts easier and is probably more flexible, but metal is more durable IMO. With either conduit type, I will use metal connectors every time.


SceneryDriver

The plastic flex (Carflex) is best for areas where corrosion is an issue, such as salt water marinas. I prefer to use the Arlington fittings, such as these:

http://www.aifittings.com/catalog/liquid-tight/straight-non-metallic-connectors/