Oxygen Regulator AdapterSKU: 066C$99.00PriceQuantityAdd to CartPRODUCT INFOAdapts your CGA540 regulator to fit onto a CGA870 Oxygen Tank. RETURN & REFUND POLICY30 Day Return Policy if unused and in original packaging. 5% restocking fee. Customer must pay all shipping costs for return of items. SHIPPING INFOGenerally ships within 2 to 3 days of ordering (business days). 5 to 7 days transportation time.