12 x 135mm boiler sight glass tube
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12 x 135mm boiler sight glass tube
Espresso PartsSKU: F_436

12 x 135mm Sight Glass

$3.48

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Details

12 x 135mm Boiler Sight Glass

Replacement sight glass, 12 x 135mm, for La Cimbali M15, M20, M25, M27, and M30; Faema Star Tronic; and Nuova Simonelli Optima boilers. Also cross-referenced under the older part number C_477.

COMPATIBILITY

  • Fits: La Cimbali M15, M20, M25, M27, M30; Faema Star Tronic; Nuova Simonelli Optima
  • Replaces: C_477 (older part number)
  • Works with: on Nuova Simonelli Optima installs, pair with gasket S_48 — this model requires it alongside the sight glass

INSTALLATION

Handle the glass carefully to avoid chipping the ends, and don't over-tighten the retaining nuts once installed.

PRO TIPS

  • On the Optima specifically, skipping the S_48 gasket is a common installation mistake that leads to a weeping sight glass almost immediately — order both together for that model.

Customer Reviews

Attention CA Residents: Prop 65 Warning

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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