Conference South survivors Welling will host holders Grays Athletic in the quarter-finals of the FA Trophy. Welling's promotion rivals Salisbury City, who won at Ron Atkinson's Kettering in the third round, must travel to Stevenage.
Kidderminster's replay win over Braintree means they will face Conference opposition in Halifax.
Gravesend & Northfleet, reprieved after AFC Wimbledon were thrown out, will go to Conference rivals Northwich.
FA Trophy quarter-final draw:
Welling United v Grays Athletic
Stevenage Borough v Salisbury City
Northwich Victoria v Gravesend & Northfleet
Kidderminster Harriers v Halifax Town
Ties to be played on Saturday, 24 February.