What diameter are the tubes, and will they stand up in a test tube holder with 16mm holes?

The replacements are the same size as the originals so will go within the holder

Is there a stand to buy for these vials. I can’t see one on Amazon as the holes are too big for the vials.

Don't really know to be honest. Sorry

If i put 1 in the quantity how tubes wi,l i recueve ?

You will get a pack of 24 tubes with caps

Api Replacement Test Tubes With Caps

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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$68.36

Duties & taxes included

In stock

Sold byAmazon GuamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Guam.

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Description

🧪 Stay ahead in aquatic care with precision-packed test tubes!

LIGHTWEIGHT DURABLE - At just 91 grams, these tubes are easy to carry without compromising on sturdiness.
LEAK PROOF CAPS INCLUDED - Each tube comes with a secure cap to prevent spills and contamination, keeping your tests reliable.
COMPACT PORTABLE DESIGN - Sized perfectly at 18.1 x 3.18 cm for easy handling and storage in your testing kit.
PERFECT API KIT COMPATIBILITY - Specifically designed to fit API liquid test kits, guaranteeing seamless integration.
BULK READY FOR ACCURATE TESTING - 24 replacement test tubes ensure you never run out during critical water quality checks.

These API Replacement Test Tubes with secure caps come in a convenient 24-pack, perfectly sized for API liquid test kits. Lightweight and compact, they provide reliable, spill-proof testing for fish tank water quality, ensuring you maintain a healthy aquatic environment effortlessly.

Specifications

ASIN	B0002AQL5G
Allergen Information	Apple Free
Batteries Included	No
Batteries required	No
Best Sellers Rank	35,519 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 114 in Test Lab Tubes
Customer Reviews	4.7 4.7 out of 5 stars (1,274)
Date First Available	31 Jan. 2011
Item Weight	90 g
Item model number	32
Pet Type	Fish
Product Dimensions	18.1 x 3.18 x 8.89 cm; 90 g
Quantity	1
Size	24 Pack

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$68.36

Duties & taxes included

In stock

Sold byAmazon GuamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Guam.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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API Replacement Test Tubes With Caps

Description

Specifications

Common Questions