Amazon with Starrey has the 100Ft 1/4" Starrey Drip Irrigation Garden Watering System with 24-Piece 360° Adjustable Copper Nozzles, DIY Kit for $30 - $11 off with coupon code AJGPQGGV at final checkout - 5% off (check "Apply 5% coupon") = $19 with free shipping on $35+ or with Prime.

Amazon promo codes don’t always work on the first attempt. Try refreshing the page and re-entering the code.