1. SIZE:
00319D - Heavy duty
00319H - Normal

2. INCLUDES:
Hose only

3. IDEAL FOR:
Heavy-Duty Hose - Ideal for heavy-duty foot pump.
Normal Hose - Ideal for normal foot pump. 
Inflating sports balls, bike tires, car tires, bicycle tires etc (Inflatable objects). 

***Heavy Duty Foot Pump VS Normal Foot Pump
•Heavy-duty foot pump:
For frequent use.
The durable iron construction allows the foot pump to inflate objects with ease and ensures long term performance. 
Stronger/Thicker body core - The foot pump design makes it easy for the user to pump without using too much energy or effort.

•Normal foot pump:
For standard use only.
Thinner body core.
Limited performance lifespan.