Why it matters: Compatible with multiple espresso machine models including Cimbali, Faema, and Simonelli Optima.
12 x 135mm Sight Glass
★ 5.01 verified store reviewsIn stock
$3.48
🇺🇸 United States
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Highlights
- Clear solid glass construction ensures unobstructed visibility of espresso extraction
- Compatible with Cimbali M15, M20, M25, M27, M30, and select Faema and Simonelli models for versatile use
- Easy installation as a direct replacement part for optimal machine performance
- Durable material maintains clarity and integrity during repeated use
Specs
| Quantity | 12 pieces |
| Glass Size | 135 mm diameter |
| Color | Clear |
| Pattern | Solid |
| Compatible Models | Cimbali M15, M20, M25, M27, M30; Faema Star Tronic, Nuova; Simonelli Optima (with gasket 48 required) |
Full product description
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.
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