Glow Worm 0020186165 Hydroblock GC No: 47-019-30.

Glow Worm 0020186165 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 £20.00.