Nylon twisted mason line. Select Break Strength 36lbs (250')18lbs (500') Add to InquiryClick to add this item to cart. Product Description Nylon heat-set after winding to stabilize. Not affected by oil or mildew. See also different: Heron DipperLog Maintenance Kit Waterra Lever Arm Tubing Actuator ORP Calibration Solution << return to products