Thumb Score: +14

EcarkeWorks via Amazon [amazon.com] has 5-Pc Ecarke 12000 PSI Grease Gun Coupler Kit w/ Quick-Release, 90° Adapter & Needle Tips on sale for $15.99 – 25% off when you apply promo code ZJC98QZO at checkout = $11.99. Shipping is free w/ Prime or on orders $35+.

Note: Amazon promo codes don’t always apply seamlessly. If you run into this issue, try refreshing the page, re-entering the code, or checking after you select a payment method to confirm whether it already applied.