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AstroAI Direct via Amazon has 150-PSI AstroAI L7 Cordless Tire Inflator / Portable Air Compressor for $31.99 – $8 (25%) when you apply the coupon on the product page – $11.20 (35%) when you apply the promo code ASTROL7003 = $12.79. Shipping is free with Prime or on $35+ orders.