All Albion season-ticket holders will have free entry to the game as will all children under-16, while the price for non-season ticket holders is £2.
John Donoghue’s side will face a Gills team that is currently unbeaten in all competitions, but the Seagulls are in fine form themselves, with five wins in their last six games.
He told seagulls.co.uk, “They are certainly one of the favourites to win the league and the league cup so I am expecting a challenge for the players.
“I am sure I will learn a great deal about their character and ability to maintain a high level of performance against Gillingham, as I did last week against Eastbourne.
“The vast majority have taken on board what is being asked and have a real belief in what we are trying to achieve, this has seen their performances individually and as a team improve and become more consistent.”
The Seagulls look set to welcome Lily Agg back from a hamstring injury, but Charlotte Young is a doubt after picking up a shoulder injury in last week’s win over Eastbourne Town.