1/4"-20 x 1/2" Thumb Screw Stainless Steel - Black Knurled Round Plastic Knob - Standard/Coarse Thread Thumbscrew - Length: 0.500" - Proudly Built in USA - Package of (4) 4 Number of Items:4 white and blue Teflon PTFE

white and blue Teflon PTFE filament connector tubes

boat tops and support poles

and drippers that deliver the proper amount of water to each plant

stainless steel finishing

Tape Strips: heavy-duty tape eliminates drilling

1/4"-20 x 1/2" Thumb Screw Stainless Steel - Black Knurled Round Plastic Knob - Standard/Coarse Thread Thumbscrew - Length: 0.500" - Proudly Built in USA - Package of (4) 4 Number of Items:4 white and blue Teflon PTFE1 4" 20 x 1 2" Thumb Screw Stainless Steel Black Knurled Round Plastic Knob Standard Coarse Thread Thumbscrew Length: 0. 500" Proudly Built in USA Package of (4) Thumb Screw Specs: Thread Diameter: 0. 250" (1 4") Thread Pitch: 20 (UNC) Screw Length: 0. 500" (1 2") Fully Threaded: Yes Minimum Thread Length: Full Thread Material: 18 8 Stainless Steel Knob Style: Knurled Round Knob Color: Black Knob Diameter: 0. 750" (3 4") Knob Height: 0. 313" (5 16")