$25 - $50

18527-51 Temperature Outlet Box, Metal, 4" x 4" by Digi-Sense

Use to create an easy-to-access direct temperature connection in control rooms, test stands, laboratories, and plants. Use with mounting panels and temperature connectors to create a complete panel assembly.

• Choose the material that best suits your environment - available in plastic or metal
• Create an easy-to-access direct temperature connection in control rooms, test stands, laboratories, and plants

*Please note we can only ship RKI products to customers within the United States

2263511 CL17 Total Chlorine Buffer Solution by AquaPhoenix

CL17 Total Chlorine Buffer Solution. Use with Total Chlorine Indicator Solution (2263411) and DPD Compound (2297255) for testing Total Chlorine using the CL17 Analyzer or bulk analytical methods. *This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.

Quality, Reliability
Simple, Predictable Maintenance
Reagent Delivery Program

C-7870 Sodium Persulfate Comparator (flat) by AquaPhoenix

C-7870 High Range Persulfate Comparator is a component of K-7870 Persulfate CHEMets Visual Test Kit and is designed to be compared against the color formed in R-5510 Peroxide/Persulfate CHEMets Refill. The comparator's range is applicable to many industrial applications. Color standards are orange in color and cover a range of 7-70 ppm sodium persulfate.

*Please note we can only ship RKI products to customers within the United States

106000-01P Dye, Red, Industrial, 1 pint by AquaPhoenix

We offer a full-line of fluorescent dyes to help detect leaks in your closed loop system. The dyes are available in several strengths and sizes and can be used in liquid, powder, or tablet form.

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

93585 PowerTank Glow 5000 Red Flashlight/Charger by Celestron

The PowerTank Glow 5000 is an essential for any amateur astronomer. This 2-in-1 device features a rechargeable handheld red LED flashlight with three brightness levels and a 5000 mAh 5V DC power bank to charge mobile devices. The PowerTank Glow 5000 attaches onto one of your telescope tripod legs or other convenient locations using one of the two included silicone straps so it is safe and out of the way. A wrist strap is also included for handheld use.

• A must-have 2-in-1 accessory for amateur astronomers: a red flashlight PLUS a USB power bank for charging mobile devices in the field.
• Red LED flashlight features three brightness levels to preserve your night vision.
• USB Type A output port charges smartphones, tablets, and other 5V DC electronics.
• Rechargeable 5000mAh 5V DC lithium-ion battery delivers a full recharge to smartphones.
• Silicone mount straps included to attach PowerTank Glow 5000 to your telescope tripod leg or other convenient locations.

Perfect astronomy flashlight

A red flashlight is one of the most beneficial accessories you can own as an amateur astronomer, no matter how occasional your night sky observations may be. The PowerTank Glow is the perfect astronomy flashlight as this will not compromise your vision at night with its red LED flashlight. This flashlight has three brightness levels that allows you to adjust the brightness depending on how dark your observing site is. When your flashlight needs power, no need to change out your batteries like traditional flashlights, just recharge the PowerTank Glow.

The perfect power solution for SkyPortal and other planetarium apps

Explore the Solar System with your phone or tablet without draining your battery. With hours of continuous use, planetarium apps like Celestron's SkyPortal can drain your smartphone's battery. What's more, your phone may not be at 100% when you begin observing. Those worries become a thing of the past with PowerTank Glow 5000. This compact power bank delivers a full charge to mobile devices with its 5000 mAh capacity, so you can use your smartphone confidently to scan the skies, capture images through the eyepiece, and share the experience with friends on social media.

High quality lithium battery technology you can trust

The power bank has an output port for charging 5V DC devices, including smartphones and tablets. The input port is used to recharge the internal lithium-ion battery. The battery has a minimum of 500x charge cycles, so it can serve your astronomy needs for years to come. The input/output ports have integrated covers to protect them when they are not in use. The PowerTank Glow 5000 has overcharge protection, so the battery cannot be damaged if inadvertently left recharging for an extended period.

Easy to use in the field

The PowerTank Glow 5000 has a single button that controls all its functions. Short presses of the button turn the red flashlight on, cycle through the three brightness levels starting with the dimmest, and then turn the flashlight off. Pressing and holding the button turns device charging on and off.

The flashlight can be used while the output port is charging an external device. Four red battery indicator LEDs indicate the battery charge status, while a green LED indicates when the PowerTank Glow 5000 is providing power to a device.

C-4815 Glycol Comparator (flat) by AquaPhoenix

C-4815 Glycol Comparator is a component of K-4815 Glycol CHEMets Visual Test Kit and is designed to be compared against the color formed in R-4815 Glycol CHEMets Refill. The comparator's range is applicable for many deicing and cooling water applications. Color standards are purple in color and cover a range of 1-15 ppm ethylene glycol or 2-30 ppm propylene glycol. The range can be extended further by sample dilution.

530550 Iron, TPTZ, F10, 0.02-1.8 mg/L Fe (VARIO) by AquaPhoenix

The fast and easy use of VARIO Powder Packs has made them extremely popular for water testing applications in many countries throughout the world. The Lovibond Powder Pack programmed provides more experienced users with a real alternative to existing measurement systems.

106001-01P Dye, Yellow/Green, 1 pint by AquaPhoenix

We offer a full-line of fluorescent dyes to help detect leaks in your closed loop system. The dyes are available in several strengths and sizes and can be used in liquid, powder, or tablet form.

08068-31 Irreversible 1-Point Square Temperature Label, 84F/29C; 50/Pk by Digi-Sense

Labels are made up of a series of temperature-sensitive elements sealed between heat-resistant substrates with transparent windows. Each element changes color distinctly as its rated temperature is met or exceeded. The changes to the label are irreversible, providing a temperature history of the surface being monitored. The labels will not delaminate when removed, allowing them to be attached to an inspection report to serve as a permanent record. Ideal for use in the food, automotive, molding and metal working industries. Accuracy is ±1.8°F below 212°F and ±1°F above 212°F. Shelf life: 1 year after date of purchase.

Reliable proof that the product was maintained at the correct temperature

• Used as a quick inspection tool that the product is in usable condition during the shipping and receiving process
• Save time and money due to costly recalls
• Self-adhesive design

*Please note we can only ship RKI products to customers within the United States

14120 Star Flatwire STST 8" Medium by Wohler

The Wohler Brushes are designed in various sizes and materials to meet your cleaning needs. We develop and manufacture our cleaning systems and brushes for chimney stacks, boilers and ventilation systems to meet the needs of professionals.

No matter how large or small the pipe, no matter how dirty it is there is a professional Wohler brush for every application. For over 85 years, craftsmen, plumbers and chimney sweeps have relied on the quality of Wohler cleaning tools and have never been disappointed. From the largest Wohler Viper XXL to the handy Wohler Viper S, we place high importance on excellent cleaning performance, easy handling and consistent quality.

13715 Star Perlon 6" by Wohler

The Wohler Brushes are designed in various sizes and materials to meet your cleaning needs. We develop and manufacture our cleaning systems and brushes for chimney stacks, boilers and ventilation systems to meet the needs of professionals.

No matter how large or small the pipe, no matter how dirty it is there is a professional Wohler brush for every application. For over 85 years, craftsmen, plumbers and chimney sweeps have relied on the quality of Wohler cleaning tools and have never been disappointed. From the largest Wohler Viper XXL to the handy Wohler Viper S, we place high importance on excellent cleaning performance, easy handling and consistent quality.