Glow Worm 0020186163 Hydroblock GC No: 47-019-30.

Glow Worm 0020186163 Hydroblock GC No: 47-019-30. From Glow Worm Home 30C. All our parts are stripped from brand new unused boilers, what you see with the part is what you get.Bargain Buy it NOW for only £25.00