apolo77Symbols and payouts. When it comes to the paytable found in the Apollo 77 slot, you should expect a relatively long list of 11 basic symbols. Instead of playing card icons, the game usesThe Apollo® 77-Series is a full port, two-piece, bronze, ball valve with mounting pad. Features: Adjustable packing Blowout-proof stem desn RPTFE seats and stuffing box ring Hardened ball for wear resistance 100% factory tested