Enviro-Equipment 1/4" x 3/8" Teflon FEP Tubing 3/16" x 1/4" TeflonĀ® Fluorinated Ethylene Propylene (FEP) Tubing Material Teflon SKU FEP-1438-1 $2.50 Select product 1/4 x 3/8 IN. Teflon FEP Tubing, per foot Quantity