Amazon has the 3-Pack PetSafe ScoopFree Crystal Litter Tray Refills (Lavender) for $69.95 - $13.99 off coupon (choose "One-time purchase" then check "Apply Coupon") - 25% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $34.98 with free shipping on $35+ or with Prime.