i need an A frame that will max to at least 9'. i also want to use it at 6' and 7'. which length should i get?

My 17 will handle these requirements.

What country is this ladder made in?

I believe the USA. Werner is based out of PA. Possibly with parts from China if I read it right.

Is there a ladder leveler made for this ladder so I can use it on my stairs?

Since each side of the ladder extensions are independent, you can easily use this on stairs. Extend one side longer than the other.

How much does it weight

Don't know the actual weight, I am sure the spec's show it somewhere. It feels heavy when lifted or adjusted, and as previously noted the weight can create a bit of an imbalance when used as a extension ladder. It is however, very stable in use.

ASIN	B0000VYDHU
Brand	Werner
Colour	Silver
Customer Reviews	4.5 out of 5 stars 951 Reviews
Enclosure Material	Metal
Global Trade Identification Number	00051751065107
Item Type Name	ladder
Item Weight	19.05 kg
Load Capacity	300 pound
Material	Metal
Maximum Height	20 Feet
Other Special Features of the Product	Foldable, Heavy Duty, Portable
Special Feature	Foldable , Heavy Duty , Portable
UPC	051751065107
Unit Count	1.0 Count

Werner MT-22 300-Pound Duty Rating Telescoping Multi-Ladder,

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