With this new upgrade kit it is now possible to convert your 501/453/UNIV to a compound gland type ICG653/UNIV. Make sure you specify the correct material (brass / brass nickel plated, stainless steel) and your choice of compound (putty or Express resin).
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| Material | Brass, brass nickel plated or stainless steel 316 |
| Compound type | QSP putty / ExPress (specify with order) |
