We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
MUELLER Flare Connection Sight Glass, Brass, 2-3/4 in Length, A 18101 - Flare Connection Sight Glasses
MUELLERFlare Connection Sight Glasses

MUELLER Flare Connection Sight Glass, Brass, 2-3/4 in Length, A 18101

The MUELLER Sight Glass is a flare connection sight glass made of brass, with a length of 2 3/4 inches. This component, identified by manufacturer part number A 18101, is designed for visual inspection of fluid flow…

SKU 3G-OTH-71639

Also listed as: A18101 · A-18101

Brand
MUELLER
Item
Flare Connection Sight Glass, Brass, 2-3/4 in Length, A 18101
Part Number
A 18101
Category
Flare Connection Sight Glasses
Available to Order
Also known as:A 18101MUELLER
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

MUELLER
Manufacturer Part Number
A 18101
Standards
2014/68/Eu; UL/cUL
Mfr. Model
A
Connection 1 Size
1/4
Cooling Sight Glasses
MUELLER Sight Glass: Flare, Brass, 2 3/4…

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

MUELLER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MUELLER Sight Glass is a flare connection sight glass made of brass, with a length of 2 3/4 inches. This component, identified by manufacturer part number A 18101, is designed for visual inspection of fluid flow in industrial piping systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MUELLER Sight Glass A 18101 used for?

The MUELLER Sight Glass A 18101 is used for visual inspection of fluid flow in industrial piping systems. Its brass construction and flare connection allow reliable monitoring of liquid or gas movement in refrigeration, HVAC, and process lines, helping operators detect bubbles, contamination, or flow irregularities.

What are the specifications of the MUELLER Sight Glass A 18101?

The MUELLER Sight Glass A 18101 is a flare connection sight glass made of brass, with a length of 2 3/4 inches. The manufacturer part number is A 18101. It is designed for visual flow inspection in industrial piping systems and is produced by MUELLER.

Where to buy the MUELLER Sight Glass A 18101 worldwide?

3G Electric supplies the MUELLER Sight Glass A 18101 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this brass flare sight glass for your piping system needs.

How to install a MUELLER flare sight glass?

To install a MUELLER flare sight glass, ensure the flare connections are clean and properly aligned. Tighten the flare nut to the recommended torque to avoid leaks. Use compatible sealants if required. Always follow standard piping practices and consult the system manual for pressure and temperature limits.

Used in

Common applications for MUELLER
Commercial refrigeration systems — Mueller steel shell filter driers for moisture and contaminant removal in liquid lines.
HVAC installations — Mueller sweat connection ball valves for flow control in refrigerant circuits.
Industrial process cooling — Mueller magnetic check valves to prevent backflow in refrigerant piping.
Refrigeration system maintenance — Mueller flare nuts and bushings for access valve connections.
Low-GWP refrigerant systems — Mueller A2L-compatible ball valves for use with low-flammability refrigerants.
Retrofit projects — Mueller filter driers and valves for upgrading existing refrigeration equipment.
Not sure this is the right part? Photo-identify it

MUELLER Products

3G Electric supplies MUELLER flare connection sight glasses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from MUELLER

View all MUELLER parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first