Amazon has the 20-Ct Scrubbing Bubbles Fresh Brush Flushables Toilet and Toilet Bowl Cleaner Refills for $7.19 - 5% off with Subscribe & Save (can cancel anytime) - $2.16 off coupon (check “Save an extra” box, eligible on first S&S order for this product) = $4.67 with free shipping on $25+ or with Prime.