Columbia 7" Throttle BoxThe 7" Throttle Box is another great product of ours that offers years of great performance. All billet construction with a threaded stainless steel ball, this Corner Box looks and operates seamlessly. All our Corner Boxes now come standard with automatic capabilities, making pushing the box at least 50% easier than standard boxes. Available in 7" and 8" sizes New spring tension allows for 50% easier push Hand made from U. S. billet aluminum and steel

Kit includes: 1 new Aluminum Box Wheel

1-MP23A "O"- Ring

Dimensions: 58'' L x 28'' W x 37'' H

Durable high flow nozzle fills flat recess joints completely

Unit Weight- 132 lbs

Meets or exceeds OSHA and CSA Standards

Great for vertical flats

Attaches to the mud pump and is used to fill automatic tapers

professional use

Goose neck and box filler sold seperately

1-MP33 Filler Gasket

1 #10 Flat Washer