Get a comprehensive, in-depth introduction to the core Python language with this hands-on book. Based on author Mark Lutz’s popular training course, this updated fifth edition will help you quickly write efficient, high-quality code with Python. It’s an ideal way to begin, whether you’re new to prog...

All You Need To Pass Your General Class Exam! Pass the 35-question General Class test.All the Exam Questions with Answer Key, for use through June 30, 2019.NEW! Convenient Spiral Bound Edition lies flat.NEW! Use with ARRL s online Exam Review for Ham Radio.Detailed explanations for all questions, in...

This Pentek EP-20BB carbon block filter cartridge reduces fine sediment and chlorine taste and odor in residential and commercial drinking water. It has a nominal (85%) filtration rating of 5 microns. The filter will reduce free available chlorine (FAC) at 2 parts per million (ppm) by at least 90% i...

The Merit Brass tee is a class 150 stainless steel 304 cast pipe fitting with female National Pipe Taper (NPT) threads for connecting and branching three sections of male pipes or fittings. It has National Pipe Taper (NPT) threads for creating tighter seals than straight threads. Made of stainless...

Zinn & the Art of Road Bike Maintenance is the world's best-selling guide to bicycle repair and maintenance. From basic repairs like how to fix a flat tire to advanced overhauls of drivetrains and brakes, Lennard Zinn's clearly illustrated guide makes every bicycle repair and maintenance job easy fo...

This Pentek 150296 SW-3 wrench is used to loosen the sumps of water filter housings. It is made of strong plastic. This wrench fits the sumps of Pentek #10 Big Blue filter housings, which are used in a wide variety of applications, including drinking water purification, irrigation, and industrial pr...

The Anderson Metals 90-degree street elbow pipe fitting is made of brass barstock and has a female National Pipe Taper (NPT) threaded connection and a male NPT threaded connection. This 90-degree street elbow fitting, or "street ell," connects two pipes, one with a male end and the other with a fema...

J-B Weld TankWeld Epoxy PuttyAutoWeld is a hand-mixable, steel-reinforced, non-rusting epoxy putty that quickly repairs or rebuilds anything made of metal. After mixing, it forms an industrial-strength polymer compound that can be molded into shapes or used to build up, patch and repair steel compon...

This Pentek 150578 MC-1A bracket is used to mount filter housings on a vertical surface. It is made of strong metal. This bracket is used with Pentek #10 and #20 3G MB housings with 3/4" connections, which are used in a wide variety of applications, including drinking water purification, irrigation,...

Modern Mann Filter air filter media demonstrate particularly high mechanical stability. By filtering the intake air efficiently and reliably, they allow optimum composition of the air/fuel mix and ensure consistent engine performance. Mann air filters lessen intake noise, control temperature regulat...

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of the water in your tank. The exclusive technology...

NOTE: this listing is for one speaker, buy as many as needed! the Micca M-Series of in-wall and in-ceiling speakers have been designed for Optimal performance in a wide variety of home entertainment applications, from providing relaxed background music, to a high impact 7-channel home theater system...