5 Gal. Polished Tank w Viair 444c black compressor, 1 4" & 3 8 4 Gal. Polished Tank w Viair 444c chrome compressor, 1 4" & 3 8 Air Lift 4 Gal. 7 Port Tank w Viair 444c Chrome Compressor (Incl. Fittings & Mounting Hardware) 4 Gal. 7 Port Polished Tank w Viair 444c black compressor, 1 4" & 3 8 4 Gal. 7 Port Polished Tank w Viair 444c black compressor, 1 4" & 3 8. Air Lift Performance Tank plus Compressor plus Hardware kit, designed to pair with a 3P or 3H no tank, no compressor kit to make a complete Air Management System.