LPG Propane Gas Installation For New House & BBQ Grill. I tank of 12.7kg SPC gas $32.50 (UP $39.50) + Gas regulator with excess flow cut safety feature $68.00 (UP $75.00) + Tank Deposit $10.00 (UP $20.00) + Gas hose & clips $17.50 (UP $20) FREE Delivery & Installation ($40.00 waived) Islandwide.